GOODWILL AND INTANGIBLE ASSETS (Goodwill) (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Goodwill [Roll Forward]
Goodwill, Balance at beginning of period	$ 6,000	$ 5,905
Goodwill acquired during the period	80	95
Goodwill, Balance at end of period	$ 6,080	$ 6,000