| **Fair Value**                        | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     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| **Fair Value Disclosures [Abstract]** | Â                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           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| Fair Value Disclosures [Text Block]   | Fair ValueFair value is the price that would be received upon sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.  The following fair value hierarchy is used in selecting inputs, with the highest priority given to Level 1, as these are the most transparent or reliable. Level 1 - Quoted prices for identical instruments in active markets.Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs are observable in active markets. Level 3 - Valuations derived from valuation techniques in which one or more significant inputs are not observable.The Company attempts to establish fair value as an exit price in an orderly transaction consistent with normal settlement market conventions.  The Company is responsible for the valuation process and seeks to obtain quoted market prices for all securities.  When quoted market prices in active markets are not available, the Company uses a number of methodologies to establish fair value estimates including:  discounted cash flow models, prices from recently executed transactions of similar securities, or broker/dealer quotes, utilizing market observable information to the extent possible.  In conjunction with modeling activities, the Company may use external data as inputs.  The modeled inputs are consistent with observable market information, when available, or with the Company's assumptions as to what market participants would use to value the securities.  The Company also uses pricing services as a significant source of data.  The Company monitors all the pricing inputs to determine if the markets from which the data is gathered are active.  As further validation of the Company's valuation process, the Company samples past fair value estimates and compares the valuations to actual transactions executed in the market on similar dates.Assets and Liabilities Measured at Fair ValueAssets and liabilities measured at fair value on a recurring basis are summarized below.June 30, 2011      TotalAssets/(Liabilities)at Fair Value(In millions)Level 1 Level 2 Level 3 Assets       Fixed maturity securities:       Corporate and other bonds$— $20,067 $812 $20,879States, municipalities and political subdivisions— 8,538 179 8,717Asset-backed:       Residential mortgage-backed— 5,326 687 6,013Commercial mortgage-backed— 942 95 1,037Other asset-backed— 442 491 933Total asset-backed— 6,710 1,273 7,983U.S. Treasury and obligations of government-sponsored enterprises183 61 — 244Foreign government128 549 — 677Redeemable preferred stock3 51 — 54Total fixed maturity securities314 35,976 2,264 38,554Equity securities198 112 36 346Derivative and other financial instruments, included in Other invested assets— 5 11 16Short term investments1,026 677 6 1,709Life settlement contracts, included in Other assets— — 129 129Discontinued operations investments, included in Other liabilities14 39 — 53Separate account business20 393 37 450Total assets$1,572 $37,202 $2,483 $41,257Liabilities       Derivative financial instruments, included in Other liabilities$— $— $(2) $(2)Total liabilities$— $— $(2) $(2)December 31, 2010      TotalAssets/(Liabilities)at Fair Value(In millions)Level 1 Level 2 Level 3 Assets       Fixed maturity securities:       Corporate and other bonds$— $20,407 $624 $21,031States, municipalities and political subdivisions— 7,623 266 7,889Asset-backed:       Residential mortgage-backed— 5,323 767 6,090Commercial mortgage-backed— 920 73 993Other asset-backed— 404 359 763Total asset-backed— 6,647 1,199 7,846U.S. Treasury and obligations of government-sponsored enterprises76 61 — 137Foreign government115 505 — 620Redeemable preferred stock3 48 3 54Total fixed maturity securities194 35,291 2,092 37,577Equity securities288 126 26 440Derivative and other financial instruments, included in Other invested assets— — 27 27Short term investments1,214 974 27 2,215Life settlement contracts, included in Other assets— — 129 129Discontinued operations investments, included in Other liabilities11 60 — 71Separate account business28 381 41 450Total assets$1,735 $36,832 $2,342 $40,909Liabilities       Derivative financial instruments, included in Other liabilities$— $— $(2) $(2)Total liabilities$— $— $(2) $(2)The tables below present a reconciliation for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended June 30, 2011 and 2010.Level 3(In millions)Balance atApril 1,2011 Net realized investment gains (losses) and net change in unrealized appreciation (depreciation) included in net income* Net change in unrealized appreciation (depreciation) included in other comprehensive income Purchases Sales Settlements Transfers intoLevel 3 Transfers out of Level 3 Balance atJune 30,2011 Unrealized gains (losses) on Level 3 assets and liabilities held at June 30, 2011 recognized in net income*Fixed maturity securities:                   Corporate and other bonds$577 $(2) $2 $304 $(30) $(70) $31 $— $812 $(3)States, municipalities and political subdivisions188 — (1) — — (8) — — 179 —Asset-backed:                   Residential mortgage-backed738 (13) 12 50 (57) (19) — (24) 687 (15)Commercial mortgage-backed88 — 2 5 — — — — 95 —Other asset-backed445 1 — 127 (44) (24) — (14) 491 —Total asset-backed1,271 (12) 14 182 (101) (43) — (38) 1,273 (15)Total fixed maturity securities2,036 (14) 15 486 (131) (121) 31 (38) 2,264 (18)Equity securities30 (1) — 4 (2) — 5 — 36 (1)Derivative and other financial instruments, net8 1 — — — — — — 9 1Short term investments27 — — — — (21) — — 6 —Life settlement contracts127 6 — — — (4) — — 129 3Separate account business39 — — — (2) — — — 37 —Total$2,267 $(8) $15 $490 $(135) $(146) $36 $(38) $2,481 $(15)Level 3(In millions)Balance atApril 1,2010 Net realized investment gains (losses) and net change in unrealized appreciation (depreciation) included in net income* Net change in unrealized appreciation (depreciation) included in other comprehensive income Purchases,sales,issuancesandsettlements Transfers intoLevel 3 Transfers out of Level 3 Balance atJune 30,2010 Unrealized gains (losses) on Level 3 assets and liabilities held at June 30, 2010 recognized in net income*Fixed maturity securities:               Corporate and other bonds$684 $7 $9 $53 $14 $(49) $718 $(3)States, municipalities and political subdivisions737 — 4 (202) — — 539 —Asset-backed:               Residential mortgage-backed679 2 3 13 — (38) 659 —Commercial mortgage-backed112 — 2 11 — (30) 95 —Other asset-backed368 — 1 (18) — (45) 306 (2)Total asset-backed1,159 2 6 6 — (113) 1,060 (2)Redeemable preferred stock4 6 (2) (7) — — 1 —Total fixed maturity securities2,584 15 17 (150) 14 (162) 2,318 (5)Equity securities8 (1) — (1) — (2) 4 (1)Derivative financial instruments, net(4) (1) — 3 — — (2) —Short term investments1 — — 10 — — 11 —Life settlement contracts131 7 — (4) — — 134 5Discontinued operations investments15 — — — — (15) — —Separate account business40 — — (3) — — 37 —Total$2,775 $20 $17 $(145) $14 $(179) $2,502 $(1)The tables below present a reconciliation for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the six months ended June 30, 2011 and 2010.Level 3(In millions)Balance atJanuary 1,2011 Net realized investment gains (losses) and net change in unrealized appreciation (depreciation) included in net income* Net change in unrealized appreciation (depreciation) included in other comprehensive income Purchases Sales Settlements Transfers intoLevel 3 Transfers out of Level 3 Balance atJune 30,2011 Unrealized gains (losses) on Level 3 assets and liabilities held at June 30, 2011 recognized in net income*Fixed maturity securities:                   Corporate and other bonds$624 $2 $(3) $346 $(50) $(97) $40 $(50) $812 $(3)States, municipalities and political subdivisions266 — — — — (87) — — 179 —Asset-backed:                   Residential mortgage-backed767 (12) 14 97 (83) (41) — (55) 687 (15)Commercial mortgage-backed73 3 18 5 (4) — — — 95 —Other asset-backed359 5 — 327 (131) (55) — (14) 491 —Total asset-backed1,199 (4) 32 429 (218) (96) — (69) 1,273 (15)Redeemable preferred stock3 3 (3) — (3) — — — — —Total fixed maturity securities2,092 1 26 775 (271) (280) 40 (119) 2,264 (18)Equity securities26 (2) (1) 19 (11) — 5 — 36 (4)Derivative and other financial instruments, net25 3 — — (19) — — — 9 1Short term investments27 — — 12 — (23) — (10) 6 —Life settlement contracts129 9 — — — (9) — — 129 3Separate account business41 — — — (4) — — — 37 —Total$2,340 $11 $25 $806 $(305) $(312) $45 $(129) $2,481 $(18)Level 3(In millions)Balance atJanuary 1,2010 Net realized investment gains (losses) and net change in unrealized appreciation (depreciation) included in net income* Net change in unrealized appreciation (depreciation) included in other comprehensive income Purchases,sales,issuancesandsettlements Transfers intoLevel 3 Transfers out of Level 3 Balance atJune 30,2010 Unrealized gains (losses) on Level 3 assets and liabilities held at June 30, 2010 recognized in net income*Fixed maturity securities:               Corporate and other bonds$609 $9 $38 $112 $23 $(73) $718 $(4)States, municipalities and political subdivisions756 — 6 (223) — — 539 —Asset-backed:               Residential mortgage-backed629 (8) 29 55 — (46) 659 (10)Commercial mortgage-backed123 (1) (2) 6 7 (38) 95 (1)Other asset-backed348 4 22 (23) — (45) 306 (2)Total asset-backed1,100 (5) 49 38 7 (129) 1,060 (13)Redeemable preferred stock2 6 — (7) — — 1 —Total fixed maturity securities2,467 10 93 (80) 30 (202) 2,318 (17)Equity securities11 (1) — (1) 2 (7) 4 (1)Derivative financial instruments, net(11) (1) — 10 — — (2) —Short term investments— — — 10 1 — 11 —Life settlement contracts130 17 — (13) — — 134 7Discontinued operations investments16 — 1 (2) — (15) — —Separate account business38 — — (1) — — 37 —Total$2,651 $25 $94 $(77) $33 $(224) $2,502 $(11)* Net realized and unrealized gains and losses shown above are reported in Net income (loss) as follows:Major Category of Assets and Liabilities Condensed Consolidated Statements of Operations Line ItemsFixed maturity securities available-for-sale Net realized investment gains (losses)Fixed maturity securities trading Net investment incomeEquity securities Net realized investment gains (losses)Derivative financial instruments held in a trading portfolio Net investment incomeDerivative financial instruments not held in a trading portfolio and fair value option financial instruments Net realized investment gains (losses)Life settlement contracts Other revenuesSecurities shown in the Level 3 tables on the previous pages may be transferred in or out of Level 3 based on the availability of observable market information used to verify pricing sources or used in pricing models.  The availability of observable market information varies based on market conditions and trading volume and may cause securities to move in and out of Level 3 from reporting period to reporting period. There were no significant transfers between Level 1 and Level 2 during the three or six months ended June 30, 2011. The Company's policy is to recognize transfers between levels at the beginning of quarterly reporting periods.The following section describes the valuation methodologies used to measure different financial instruments at fair value, including an indication of the level in the fair value hierarchy in which the instruments are generally classified.  Fixed Maturity Securities Level 1 securities include highly liquid U.S. and foreign government bonds, and redeemable preferred stock, valued using quoted market prices.  The remaining fixed maturity securities are valued using pricing for similar securities, recently executed transactions, cash flow models with yield curves, broker/dealer quotes and other pricing models utilizing observable inputs.  The valuation for most fixed maturity securities is classified as Level 2.  Level 2 securities may also include securities that have firm sale commitments and prices that are not recorded until the settlement date. Securities are generally assigned to Level 3 in cases where broker/dealer quotes are significant inputs to the valuation and there is a lack of transparency as to whether these quotes are based on information that is observable in the marketplace.  Level 3 securities also include tax-exempt and taxable auction rate certificates.  Fair value of auction rate securities is determined utilizing a pricing model with three primary inputs. The interest rate and spread inputs are observable from like instruments while the maturity date assumption is unobservable due to the uncertain nature of the principal prepayments prior to maturity. Equity Securities Level 1 securities include publicly traded securities valued using quoted market prices. Level 2 securities are primarily non-redeemable preferred stocks and common stocks valued using pricing for similar securities, recently executed transactions, broker/dealer quotes and other pricing models utilizing observable inputs.  Level 3 securities are priced using internal models with inputs that are not market observable.Derivative and Other Financial InstrumentsExchange traded derivatives, primarily futures, are valued using quoted market prices and are classified within Level 1 of the fair value hierarchy.  Level 2 derivatives primarily include currency forwards valued using observable market forward rates.  Over-the-counter derivatives, principally interest rate swaps, total return swaps, credit default swaps, equity warrants and options, are valued using inputs including broker/dealer quotes and are classified within Level 3 of the valuation hierarchy due to a lack of transparency as to whether these quotes are based on information that is observable in the marketplace.  Other financial instruments consist of Level 3 securities which contain embedded derivatives for which the fair value option has been elected and are priced using either broker/dealer quotes or internal models with inputs that are not market observable.  Short Term InvestmentsThe valuation of securities that are actively traded or have quoted prices are classified as Level 1.  These securities include money market funds and treasury bills.  Level 2 primarily includes commercial paper, for which all inputs are observable.  Level 3 securities include fixed maturity securities purchased within one year of maturity where broker/dealer quotes are significant inputs to the valuation and there is a lack of transparency to the market inputs used.  Life Settlement Contracts  The fair values of life settlement contracts are determined as the present value of the anticipated death benefits less anticipated premium payments based on contract terms that are distinct for each insured, as well as the Company's own assumptions for mortality, premium expense, and the rate of return that a buyer would require on the contracts, as no comparable market pricing data is available.Discontinued Operations InvestmentsAssets relating to the Company's discontinued operations include fixed maturity securities and short term investments.  The valuation methodologies for these asset types have been described above.  Separate Account BusinessSeparate account business includes fixed maturity securities, equities and short term investments.  The valuation methodologies for these asset types have been described above.  Financial Assets and Liabilities Not Measured at Fair ValueThe carrying amount and estimated fair value of the Company's financial instrument assets and liabilities which are not measured at fair value on the Condensed Consolidated Balance Sheets are listed in the table below. June 30, 2011 December 31, 2010(In millions)CarryingAmount EstimatedFair Value CarryingAmount EstimatedFair ValueFinancial assets       Notes receivable for the issuance of common stock$23 $25 $26 $26Mortgage loans198 204 87 86Financial liabilities       Premium deposits and annuity contracts$105 $108 $104 $105Short term debt— — 400 411Long term debt2,648 2,873 2,251 2,376The following methods and assumptions were used to estimate the fair value of these financial assets and liabilities.The fair values of notes receivable for the issuance of common stock were estimated using discounted cash flows utilizing interest rates currently offered for obligations securitized with similar collateral. The fair values of mortgage loans were based on the present value of the expected future cash flows discounted at the current interest rate for origination of similar quality loans.Premium deposits and annuity contracts were valued based on cash surrender values, estimated fair values or policyholder liabilities, net of amounts ceded related to sold business.The Company's senior notes and debentures were valued based on observable quoted market prices.  The fair value for other debt was estimated using discounted cash flows based on current incremental borrowing rates for similar borrowing arrangements.The carrying amounts reported on the Condensed Consolidated Balance Sheets for Cash, Accrued investment income and certain other assets and other liabilities approximate fair value due to the short term nature of these items.  These assets and liabilities are not listed in the table above. |

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| - Definition
The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.
+ References
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