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INCOME TAX 5 (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Reconciliation of Unrecognized Tax Benefits [Abstract]      
Balance at beginning of year $ 659 $ 729 $ 722
Gross increases related to current period tax positions 56 65 41
Gross increases related to prior periods tax positions 175 204 118
Gross decreases related to prior periods tax positions (72) (277) (21)
Decrease related to resolutions of audits with tax authorities (11) (32) (92)
Expiration of the statue of limitations for the assessment of taxes (13) (10) (30)
Foreign currency translation (29) (20) (9)
Balance at end of year $ 765 $ 659 $ 729