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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, ADVERTISING COSTS (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Accounting Policies [Abstract]        
Advertising expense $ 27 $ 34 $ 95 $ 113