Annual report pursuant to Section 13 and 15(d)

INVESTMENTS (Details)

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INVESTMENTS (Details) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Trading Securities      
Trading securities, net unrealized gains (losses) $ 19 $ 40 $ 12
Marketable securities 229 315  
Other assets 93 94  
Trading Securities $ 322 $ 409