SHAREHOLDERS' EQUITY, COMMON STOCK REPURCHASE (Details) - 2015 1 Billion Repurchase Program [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended		37 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Aug. 31, 2015
Class of Stock [Line Items]
Stock repurchase program, authorized amount						$ 1,000
Stock repurchased during period (shares)					5,676,305
Value of stock repurchased during period					$ 426
Shares	193,203	355,415	582,942	612,095
Amount	$ 12	$ 28	$ 37	$ 50