INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income tax expense	$ 109	$ 106
Effective income tax rate	32.90%	33.70%
Federal income tax rate	35.00%	35.00%
Deferred taxes, net	$ 852		$ 730