CHARGES FOR RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS - Changes in accrued severance related to restructuring (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring Cost and Reserve [Line Items]
Accrued severance as of December 31, 2014			$ 10
Charges	$ 1	$ 2	1	$ 25
Payments			(9)
Accrued severance as of September 30, 2015	$ 2		$ 2