DEBT (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Other Expense [Member]
Debt Instrument [Line Items]
Pre tax losses on extinguishment of debt			$ 48	$ 79
6.95% Senior Notes due July 2037 and 5.75% Senior Notes due January 2040 [Member]
Debt Instrument [Line Items]
Extinguishment of debt, amount	$ 200	$ 250
6.95% Senior Notes Due 2037 [Member]
Debt Instrument [Line Items]
Extinguishment of debt, amount	73	176
5.75% Senior Notes Due 2040 [Member]
Debt Instrument [Line Items]
Extinguishment of debt, amount	$ 127	$ 74