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LIABILITY FOR UNPAID CLAIMS AND CLAIMS ADJUSTMENT EXPENSE AND FUTURE POLICY BENEFITS FOR LIFE AND ACCIDENT AND HEALTH INSURANCE CONTRACTS AND POLICYHOLDER CONTRACT DEPOSITS (Details 3) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2011
Life insurance
Y
Future policy benefits      
Long duration and structured settlement contracts $ 33,322 $ 30,992  
Short duration contracts 995 276  
Total future policy benefits $ 34,317 $ 31,268  
Assumptions for liability for future life policy benefits      
Interest rates (exclusive of immediate/terminal funding annuities), low end of range (as a percent)     1.00%
Interest rates (exclusive of immediate/terminal funding annuities), high end of range (as a percent)     9.50%
Period considered for interest rates (exclusive of immediate/terminal funding annuities) (in years)     20
Maximum interest rates on immediate/terminal funding annuities (as a percent)     13.50%
Maximum grade of interest rates on immediate/terminal funding annuities (as a percent)     0.50%
Weighted average lapse rate, including surrenders, for individual and group life (as a percent)     5.30%
Percentage of gross insurance in force     2.20%
Percentage of gross premiums and other consideration     4.80%