DEBT (Debt Extinguishment)(Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Extinguishment of Debt [Line Items]
Debt reductions	[1]	$ 90	$ 262	$ 1,479	$ 1,301
Write off of deferred debt issuance cost		$ 1	$ 13	$ 208	$ 275

[1] Reductions related to notes with interest rates ranging from 4.75% to 5.85% with original maturities from 2019 to 2030 and from 4.75% to 9.38% with original maturities from 2015 to 2027 for the three months ended September 30, 2015 and 2014, respectively, and from 4.70% to 9.38% with original maturities from 2015 to 2030 and from 4.75% to 9.38% with original maturities from 2018 to 2029 for the nine months ended September 30, 2015 and 2014, respectively.