INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Taxes
Income tax expenses	$ 10	$ 11	$ 61
Continued operations pre-tax earnings	89	$ 40	219	$ 77
Reduction in estimated liabilities for uncertain tax positions			4
Unrecognized tax benefits	37		37
Unrecognized tax benefits which, if recognized, would impact effective tax rate	34		34
Unrecognized federal and state tax benefits and reserves for interest and penalties, which may decrease in the next 12 months	$ 6		6
Continuing operations
Income Taxes
Interest and penalties related to accrued liabilities for uncertain tax positions, recognized			$ 5