DERIVATIVES AND HEDGING ACTIVITIES Gains Losses Recognized in Accumulated Other Comprehensive Income AOCI Net of Tax Related to Derivative Instruments (Details) - Other Comprehensive Income (Loss) - Cash Flow Hedging - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ 1	$ 1	$ (20)	$ 9
Foreign Exchange Contract
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	1	1	(18)	9
Interest Rate Contract
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ 0	$ 0	$ (2)	$ 0