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INVESTMENTS (Details 9) (Fixed maturity securities, USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Fixed maturity securities
       
Other Than Temporary Impairment Credit Losses Recognized in Earnings        
Balance, beginning of period $ 4,236 $ 6,090 $ 5,164 $ 6,504
Increases due to:        
Credit impairments on new securities subject to impairment losses 6   33 172
Additional credit impairments on previously impaired securities 29 45 59 421
Reductions due to:        
Credit impaired securities fully disposed for which there was no prior intent or requirement to sell (68) (297) (626) (815)
Credit impaired securities for which there is a current intent or anticipated requirement to sell   (5)   (5)
Accretion on securities previously impaired due to credit (184) (215) (611) (668)
Other   (3)   6
Balance, end of period $ 4,019 $ 5,615 $ 4,019 $ 5,615