DERIVATIVES AND HEDGING ACTIVITIES (Impact of Derivative Instruments in Consolidated Balance Sheet) (Parenthetical) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 23	$ 9
Derivative Liabilities	28	23
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	11	3
Deferred Charges and Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	11	4
Other Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	17	20
Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 11	$ 1