SHAREHOLDERS' EQUITY, COMMON STOCK REPURCHASE (Details) - 2015 1 Billion Repurchase Program [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended		22 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Aug. 31, 2015
Class of Stock [Line Items]
Stock repurchase program, authorized amount (shares)						$ 1,000
Stock repurchased during period (shares)					4,400,000.0
Value of stock repurchased during period					$ 335
Shares	256,680	873,396	256,680	2,594,809
Amount	$ 22	$ 67	$ 22	$ 193