SHAREHOLDERS' EQUITY, COMMON STOCK REPURCHASE (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Aug. 31, 2015	May 31, 2014
Class of Stock [Line Items]
Stock repurchased during period (shares)	0	1,588,251	2,594,809	5,649,805
Stock repurchased during period	$ 0	$ 119	$ 193	$ 381
2015 1 Billion Repurchase Program [Member]
Class of Stock [Line Items]
Stock repurchase program, authorized amount (shares)					$ 1,000
Stock repurchased during period (shares)	0	0	2,594,809	0
Stock repurchased during period	$ 0	$ 0	$ 193	$ 0
May 2014 Stock Repurchase Program [Member]
Class of Stock [Line Items]
Stock repurchase program, authorized amount (shares)						$ 650
Stock repurchased during period (shares)	0	1,588,251	0	5,649,805
Stock repurchased during period	$ 0	$ 119	$ 0	$ 381