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INCOME TAXES Unrecognized Tax Benefits and Related Accrued Estimated Interest and Penalties (Details)
$ in Millions
3 Months Ended
Mar. 31, 2017
USD ($)
Schedule of Unrecognized Tax Benefits and Related Accrued Estimated Interest and Penalties [Line Items]  
Balance at December 31, 2016 $ (98)
Activity for three months ended March 31, 2017 (2)
Balance at March 31, 2017 (100)
Balance at December 31, 2016 (22)
Activity for three months ended March 31, 2017 2
Balance at March 31, 2017 $ (20)