| **Investments**                                                                                           | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            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| **Investments, Debt and Equity Securities [Abstract]**                                                    | Â                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         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| Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | InvestmentsThe significant components of net investment income are presented in the following table.Net Investment IncomePeriods ended June 30Three Months Six Months(In millions)2011 2010 2011 2010Fixed maturity securities$505 $519 $1,011 $1,029Short term investments2 5 4 11Limited partnership investments11 (4) 125 68Equity securities6 9 12 19Mortgage loans2 — 4 —Trading portfolio (a)3 2 6 6Other3 3 5 5Gross investment income532 534 1,167 1,138Investment expense(15) (13) (30) (27)Net investment income$517 $521 $1,137 $1,111____________________(a)There were no net unrealized gains (losses) related to changes in fair value of trading securities still held included in net investment income for the three and six months ended June 30, 2011 and 2010.Net realized investment gains are presented in the following table.Net Realized Investment GainsPeriods ended June 30Three Months Six Months(In millions)2011 2010 2011 2010Net realized investment gains:       Fixed maturity securities:       Gross realized gains$89 $133 $177 $231Gross realized losses(69) (67) (137) (138)Net realized investment gains on fixed maturity securities20 66 40 93Equity securities:       Gross realized gains1 — 6 4Gross realized losses(3) (28) (8) (29)Net realized investment losses on equity securities(2) (28) (2) (25)Derivatives— — (1) —Short term investments and other (a) (b)(3) (9) (9) (5)Net realized investment gains, net of participating policyholders’ interests$15 $29 $28 $63____________________(a)The six months ended June 30, 2011 includes a $9 million loss related to the early extinguishment of $400 million of senior notes originally due August 15, 2011.(b)There were no net unrealized gains (losses) included in the three months ended June 30, 2011 and $1 million of net unrealized gains included in the six months ended June 30, 2011 related to changes in fair value of securities for which the fair value option has been elected. The components of net other-than-temporary impairment (OTTI) losses recognized in earnings by asset type are summarized in the following table.Periods ended June 30Three Months Six Months(In millions)2011 2010 2011 2010Fixed maturity securities available-for-sale:       Corporate and other bonds$15 $24 $24 $42States, municipalities and political subdivisions— 6 — 20Asset-backed:       Residential mortgage-backed46 11 74 37Commercial mortgage-backed— — — 2Other asset-backed— 2 — 2Total asset-backed46 13 74 41Total fixed maturity securities available-for-sale61 43 98 103Equity securities available-for-sale:       Common stock1 5 4 5Preferred stock— 9 1 9Total equity securities available-for-sale1 14 5 14Net OTTI losses recognized in earnings$62 $57 $103 $117A security is impaired if the fair value of the security is less than its cost adjusted for accretion, amortization and previously recorded OTTI losses, otherwise defined as an unrealized loss. When a security is impaired, the impairment is evaluated to determine whether it is temporary or other-than-temporary.Significant judgment is required in the determination of whether an OTTI loss has occurred for a security. The Company follows a consistent and systematic process for determining and recording an OTTI loss. The Company has established a committee responsible for the OTTI process. This committee, referred to as the Impairment Committee, is made up of three officers appointed by the Company’s Chief Financial Officer. The Impairment Committee is responsible for evaluating all securities in an unrealized loss position on at least a quarterly basis.The Impairment Committee’s assessment of whether an OTTI loss has occurred incorporates both quantitative and qualitative information. Fixed maturity securities that the Company intends to sell, or it more likely than not will be required to sell before recovery of amortized cost, are considered to be other-than-temporarily impaired and the entire difference between the amortized cost basis and fair value of the security is recognized as an OTTI loss in earnings. The remaining fixed maturity securities in an unrealized loss position are evaluated to determine if a credit loss exists. The factors considered by the Impairment Committee include (a) the financial condition and near term prospects of the issuer, (b) whether the debtor is current on interest and principal payments, (c) credit ratings of the securities and (d) general market conditions and industry or sector specific outlook. The Company also considers results and analysis of cash flow modeling for asset-backed securities, and when appropriate, other fixed maturity securities. The focus of the analysis for asset-backed securities is on assessing the sufficiency and quality of underlying collateral and timing of cash flows based on scenario tests. If the present value of the modeled expected cash flows equals or exceeds the amortized cost of a security, no credit loss is judged to exist and the asset-backed security is deemed to be temporarily impaired. If the present value of the expected cash flows is less than amortized cost, the security is judged to be other-than-temporarily impaired for credit reasons and that shortfall, referred to as the credit component, is recognized as an OTTI loss in earnings. The difference between the adjusted amortized cost basis and fair value, referred to as the non-credit component, is recognized as OTTI in Other comprehensive income.  In subsequent reporting periods, a change in intent to sell or further credit impairment on a security whose fair value has not deteriorated will cause the non-credit component originally recorded as OTTI in Other comprehensive income to be recognized as an OTTI loss in earnings.The Company performs the discounted cash flow analysis using stressed scenarios to determine future expectations regarding recoverability. For asset-backed securities, significant assumptions enter into these cash flow projections including delinquency rates, probable risk of default, loss severity upon a default, over collateralization and interest coverage triggers, credit support from lower level tranches and impacts of rating agency downgrades.The Company applies the same impairment model as described above for the majority of non-redeemable preferred stock securities on the basis that these securities possess characteristics similar to debt securities and that the issuers maintain their ability to pay dividends. For all other equity securities, in determining whether the security is other-than-temporarily impaired, the Impairment Committee considers a number of factors including, but not limited to: (a) the length of time and the extent to which the fair value has been less than amortized cost, (b) the financial condition and near term prospects of the issuer, (c) the intent and ability of the Company to retain its investment for a period of time sufficient to allow for an anticipated recovery in value and (d) general market conditions and industry or sector specific outlook.The following tables provide a summary of fixed maturity and equity securities.Summary of Fixed Maturity and Equity SecuritiesJune 30, 2011Cost orAmortizedCost GrossUnrealizedGains GrossUnrealizedLosses EstimatedFairValue UnrealizedOTTILosses (Gains)(In millions)    Fixed maturity securities available-for-sale:         Corporate and other bonds$19,213 $1,705 $39 $20,879 $—States, municipalities and political subdivisions8,628 357 268 8,717 —Asset-backed:         Residential mortgage-backed6,076 103 166 6,013 61Commercial mortgage-backed1,011 62 36 1,037 (9)Other asset-backed925 17 9 933 —Total asset-backed8,012 182 211 7,983 52U.S. Treasury and obligations of government-sponsored enterprises231 14 1 244 —Foreign government659 18 — 677 —Redeemable preferred stock48 6 — 54 —Total fixed maturity securities available-for-sale36,791 2,282 519 38,554 $52Equity securities available-for-sale:         Common stock107 26 — 133  Preferred stock213 2 2 213  Total equity securities available-for-sale320 28 2 346  Total$37,111 $2,310 $521 $38,900  Summary of Fixed Maturity and Equity SecuritiesDecember 31, 2010Cost orAmortizedCost GrossUnrealizedGains GrossUnrealizedLosses EstimatedFairValue UnrealizedOTTILosses (Gains)(In millions)    Fixed maturity securities available-for-sale:         Corporate and other bonds$19,492 $1,603 $70 $21,025 $—States, municipalities and political subdivisions8,157 142 410 7,889 —Asset-backed:         Residential mortgage-backed6,254 101 265 6,090 114Commercial mortgage-backed994 40 41 993 (2)Other asset-backed753 18 8 763 —Total asset-backed8,001 159 314 7,846 112U.S. Treasury and obligations of government-sponsored enterprises122 16 1 137 —Foreign government602 18 — 620 —Redeemable preferred stock47 7 — 54 —Total fixed maturity securities available-for-sale36,421 1,945 795 37,571 $112Total fixed maturity securities trading6 — — 6  Equity securities available-for-sale:         Common stock90 25 — 115  Preferred stock332 2 9 325  Total equity securities available-for-sale422 27 9 440  Total$36,849 $1,972 $804 $38,017  The following tables summarize the estimated fair value and gross unrealized losses of available-for-sale fixed maturity and equity securities in a gross unrealized loss position by the length of time in which the securities have continuously been in that position.Securities in a Gross Unrealized Loss Position Less than 12 Months Greater than 12 Months TotalJune 30, 2011EstimatedFair Value GrossUnrealizedLosses EstimatedFair Value GrossUnrealizedLosses EstimatedFair Value GrossUnrealizedLosses(In millions)     Fixed maturity securities available-for-sale:           Corporate and other bonds$1,321 $23 $197 $16 $1,518 $39States, municipalities and political subdivisions1,331 62 663 206 1,994 268Asset-backed:           Residential mortgage-backed2,131 42 1,016 124 3,147 166Commercial mortgage-backed317 15 194 21 511 36Other asset-backed168 4 61 5 229 9Total asset-backed2,616 61 1,271 150 3,887 211U.S. Treasury and obligations of   government-sponsored enterprises118 1 — — 118 1Total fixed maturity securities available-for-sale5,386 147 2,131 372 7,517 519Equity securities available-for-sale:           Preferred stock90 1 19 1 109 2Total equity securities available-for-sale90 1 19 1 109 2Total$5,476 $148 $2,150 $373 $7,626 $521Securities in a Gross Unrealized Loss Position Less than 12 Months Greater than 12 Months TotalDecember 31, 2010EstimatedFair Value GrossUnrealizedLosses EstimatedFair Value GrossUnrealizedLosses EstimatedFair Value GrossUnrealizedLosses(In millions)     Fixed maturity securities available-for-sale:           Corporate and other bonds$1,719 $34 $405 $36 $2,124 $70States, municipalities and political subdivisions3,339 164 745 246 4,084 410Asset-backed:           Residential mortgage-backed1,800 52 1,801 213 3,601 265Commercial mortgage-backed164 3 333 38 497 41Other asset-backed122 1 60 7 182 8Total asset-backed2,086 56 2,194 258 4,280 314U.S. Treasury and obligations of government-sponsored enterprises8 1 — — 8 1Total fixed maturity securities available-for-sale7,152 255 3,344 540 10,496 795Equity securities available-for-sale:           Preferred stock175 5 70 4 245 9Total equity securities available-for-sale175 5 70 4 245 9Total$7,327 $260 $3,414 $544 $10,741 $804The amount of pretax net unrealized gains on available-for-sale securities reclassified out of accumulated other comprehensive income (AOCI) into earnings was $20 million and $41 million for the three and six months ended June 30, 2011 and $39 million and $71 million for the three and six months ended June 30, 2010.The following table summarizes the activity for the three and six months ended June 30, 2011 and 2010 related to the pretax credit loss component reflected in Retained earnings on fixed maturity securities still held at June 30, 2011 and 2010 for which a portion of an OTTI loss was recognized in Other comprehensive income.Periods ended June 30Three Months Six Months(In millions)2011 2010 2011 2010Beginning balance of credit losses on fixed maturity securities$113 $171 $141 $164Additional credit losses for which an OTTI loss was previously recognized8 11 18 22Credit losses for which an OTTI loss was not previously recognized— 3 1 8Reductions for securities sold during the period(21) (14) (46) (23)Reductions for securities the Company intends to sell or more likely than not will be required to sell(18) — (32) —Ending balance of credit losses on fixed maturity securities$82 $171 $82 $171Based on current facts and circumstances, the Company has determined that no additional OTTI losses related to the securities in an unrealized loss position presented in the June 30, 2011 Securities in a Gross Unrealized Loss Position table above are required to be recorded.  A discussion of some of the factors reviewed in making that determination is presented below.The classification between investment grade and non-investment grade presented in the discussion below is based on a ratings methodology that takes into account ratings from two major providers, Standard & Poor’s (S&P) and Moody’s Investors Service, Inc. (Moody’s) in that order of preference.  If a security is not rated by these providers, the Company formulates an internal rating. For securities with credit support from third party guarantees, the rating reflects the greater of the underlying rating of the issuer or the insured rating.States, Municipalities and Political SubdivisionsThe fair value of total states, municipalities and political subdivisions holdings at June 30, 2011 was $8,717 million.  These holdings consist of both tax-exempt and taxable bonds, 72% of which are special revenue and assessment bonds, followed by general obligation political subdivision bonds at 19% and state general obligation bonds at 9%. The unrealized losses on the Company's investments in this category are primarily due to market conditions for zero coupon bonds, particularly for those with maturity dates that exceed 20 years.  Yields for these securities continue to be higher than historical norms relative to after-tax returns on similar fixed income securities. The holdings for all securities in this category include 304 securities that have at least one trade lot in a gross unrealized loss position.  The aggregate severity of the total gross unrealized losses was approximately 12% of amortized cost.   The following table summarizes the ratings distribution of states, municipalities and political subdivisions securities in a gross unrealized loss position at June 30, 2011.Gross Unrealized Losses by Ratings DistributionJune 30, 2011AmortizedCost EstimatedFair Value GrossUnrealizedLosses(In millions)  AAA$412 $387 $25AA1,050 877 173A713 650 63BBB71 65 6Non-investment grade16 15 1Total$2,262 $1,994 $268The largest exposures at June 30, 2011 as measured by gross unrealized losses were several separate issues of Puerto Rico sales tax revenue bonds with gross unrealized losses of $102 million and several separate issues of New Jersey transit revenue bonds with gross unrealized losses of $41 million.  All of these securities are rated investment grade.The Company has no current intent to sell these securities, nor is it more likely than not that it will be required to sell prior to recovery of amortized cost.  Additionally, the Company believes that the unrealized losses on these securities were not due to factors regarding the ultimate collection of principal and interest; accordingly, the Company has determined that there are no additional OTTI losses to be recorded at June 30, 2011.Asset-Backed SecuritiesThe fair value of total asset-backed holdings at June 30, 2011 was $7,983 million which was comprised of 2,057 different securities.  The fair value of these securities tends to be influenced by the characteristics and projected cash flows of the underlying collateral rather than the credit of the issuer.  Each security has deal-specific tranche structures, credit support that results from the unique deal structure, particular collateral characteristics and other distinct security terms.  As a result, seemingly common factors such as delinquency rates and collateral performance affect each security differently.  Of these securities, 138 have underlying collateral that is either considered sub-prime or Alt-A in nature. The exposure to sub-prime residential mortgage (sub-prime) collateral and Alternative A residential mortgages that have lower than normal standards of loan documentation (Alt-A) collateral is measured by the original deal structure.Residential mortgage-backed securities include 137 non-agency structured securities that have at least one trade lot in a gross unrealized loss position.  In addition, there were 95 mortgage-backed securities guaranteed by agencies or sponsored enterprises of the U.S. Government that have at least one trade lot in a gross unrealized loss position.  The aggregate severity of the gross unrealized loss for residential mortgage-backed securities was approximately 5% of amortized cost.Commercial mortgage-backed securities include 50 securities that have at least one trade lot in a gross unrealized loss position.  The aggregate severity of the gross unrealized loss was approximately 7% of amortized cost.Other asset-backed securities include 21 securities that have at least one trade lot in a gross unrealized loss position. The aggregate severity of the gross unrealized loss was approximately 4% of amortized cost.The following table summarizes asset-backed securities in a gross unrealized loss position by ratings distribution at June 30, 2011.Gross Unrealized Losses by Ratings DistributionJune 30, 2011AmortizedCost EstimatedFair Value GrossUnrealizedLosses(In millions)  U.S. Government, Government Agencies, and Government-Sponsored Enterprises$1,881 $1,852 $29AAA688 660 28AA318 295 23A173 164 9BBB296 256 40Non-investment grade and equity tranches742 660 82Total$4,098 $3,887 $211The Company believes the unrealized losses are primarily attributable to broader economic conditions, changes in interest rates, wider than historical bid/ask spreads, and uncertainty with regard to the timing and amount of ultimate collateral realization, but are not indicative of the ultimate collectibility of the current carrying values of securities.  The Company has no current intent to sell these securities, nor is it more likely than not that it will be required to sell prior to recovery of amortized cost.  Generally, non-investment grade asset-backed securities consist of investments which were investment grade at the time of purchase but have subsequently been downgraded and primarily consist of holdings senior to the equity tranche.  Additionally, the Company believes that the unrealized losses on these securities were not due to factors regarding the ultimate collection of principal and interest, collateral shortfalls, or substantial changes in future cash flow expectations; accordingly, the Company has determined that there are no additional OTTI losses to be recorded at June 30, 2011.Contractual MaturityThe following table summarizes available-for-sale fixed maturity securities by contractual maturity at June 30, 2011 and December 31, 2010. Actual maturities may differ from contractual maturities because certain securities may be called or prepaid with or without call or prepayment penalties. Securities not due at a single date are allocated based on weighted average life.Contractual Maturity June 30, 2011 December 31, 2010(In millions)Cost orAmortizedCost EstimatedFairValue Cost orAmortizedCost EstimatedFairValueDue in one year or less$1,641 $1,649 $1,515 $1,506Due after one year through five years11,352 11,882 11,198 11,653Due after five years through ten years9,778 10,274 10,022 10,425Due after ten years14,020 14,749 13,686 13,987Total$36,791 $38,554 $36,421 $37,571Commercial Mortgage LoansMortgage loans are commercial in nature and are carried at unpaid principal balance, net of unamortized fees and any valuation allowance.  Mortgage loans are considered to be impaired loans when it is probable that contractual principal and interest payments will not be collected.  A valuation allowance is established for impaired loans to the extent that the present value of expected future cash flows discounted at the loan's original effective interest rate is less than the carrying value of the loan. Interest income from mortgage loans is recognized on an accrual basis using the effective yield method.  Accrual of income is generally suspended for mortgage loans that are impaired and collection of principal and interest payment is unlikely.  Mortgage loans are considered past due when full principal or interest payments have not been received according to contractual terms.Risks related to the recoverability of loan balances include declines in the estimated cash flows from underlying property leases, declines in the fair value of collateral, and creditworthiness of tenants of credit tenant loan properties, where lease payments directly service the loan.  As of June 30, 2011, 17% of the carrying value of mortgage loans related to credit tenant loans.  The Company identifies loans for evaluation of impairment primarily based on the collection experience of each loan.  As of June 30, 2011, there were no loans past due or in non-accrual status, and no valuation allowance was recorded. Investment CommitmentsAs of June 30, 2011, the Company had committed approximately $154 million to future capital calls from various third-party limited partnership investments in exchange for an ownership interest in the related partnerships.The Company invests in various privately placed debt securities, including bank loans, as part of its overall investment strategy and has committed to additional future purchases and sales.  The purchase and sale of these investments are recorded on the date that the legal agreements are finalized and cash settlements are made.  As of June 30, 2011, the Company had commitments to purchase $104 million and sell $96 million of such investments. |

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| - Definition
Tabular disclosure of investments in certain debt and equity securities (and certain other trading assets) which include all debt and equity securities (other than those equity securities accounted for under the equity or cost methods of accounting) with readily determinable fair values. Other trading assets include assets that are carried on the balance sheet at fair value and held for trading purposes.  A debt security represents a creditor relationship with an enterprise that is in the form of a security. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities (and other trading assets).
+ References
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