NONCONTROLLING INTERESTS Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Noncontrolling Interest [Line Items]
Balance at beginning of period	$ 1,190	$ 1,274	$ 1,186	$ 1,242
Noncontrolling Interest, Decrease From Dividends To Joint Venture	6	3	6	3
Net income attributable to noncontrolling interests	31	38	66	65
Distributions to noncontrolling interests	(37)	(27)	(61)	(48)
Noncontrolling Interest, Decrease from Deconsolidation		(119)		(119)
Cumulative translation adjustments	(34)	3	(40)	28
Other	2	(1)	1	0
Balance at end of period	$ 1,152	$ 1,168	$ 1,152	$ 1,168