INCOME TAXES - Provision and Deferred Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current tax expense (benefit):
Federal	$ 12	$ (2)	$ (12)
State	14	28	18
Total	26	26	6
Deferred tax expense (benefit):
Federal	34	24	46
State	7	18	(3)
Total	41	42	43
Income tax expense (benefit)	67	68	$ 49
Foreign pretax loss	$ (16)	$ (4)