SHAREHOLDERS' EQUITY, COMMON STOCK REPURCHASE (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	May. 31, 2014	Sep. 30, 2012
Class of Stock [Line Items]
Stock repurchased during period (shares)	2,480,807	1,108,334	4,061,554	1,814,036
Stock repurchased during period	$ 160	$ 53	$ 262	$ 83
May 2014 Stock Repurchase Program [Member]
Class of Stock [Line Items]
Stock repurchase program, authorized amount (shares)					$ 650
Stock repurchased during period (shares)	2,480,807	0	4,061,554	0
Stock repurchased during period	$ 160	$ 0	$ 262	$ 0
September 2012 Stock Repurchase Program [Member]
Class of Stock [Line Items]
Stock repurchase program, authorized amount (shares)						$ 250
Stock repurchased during period (shares)	0	1,108,334	0	1,814,036
Stock repurchased during period	$ 0	$ 53	$ 0	$ 83