GOODWILL AND INTANGIBLE ASSETS (Goodwill) (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Goodwill, Balance at beginning of period	$ 5,905	$ 6,032
Goodwill acquired during the period	91	33
Reclassification to assets held for sale	0	(160)
Goodwill, Balance at end of period	$ 5,996	$ 5,905