Annual report pursuant to Section 13 and 15(d)

INVESTMENTS (Details 4)

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INVESTMENTS (Details 4) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Schedule of Available-for-sale Securities [Line Items]      
Other-than-temporary impairment charges, available-for-sale securities   $ 17 $ 26
Proceeds from Sale of Available-for-sale Securities 5,036 37  
Gross realized gains 41 5  
Gross realized losses (35) (1)  
Available-for-Sale Securities
     
Schedule of Available-for-sale Securities [Line Items]      
Solvency Funds of Insurance Captive $ 451 $ 285