INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income tax expense	$ 114	$ 109
Effective income tax rate	26.40%	32.90%
U.S. Federal income tax expense and tax rate	35.00%	35.00%
Tax settlement	$ 23
Deferred taxes, net	744		$ 714
Unrecognized tax benefits	$ 6		$ 42