DERIVATIVES AND HEDGING ACTIVITIES Impact of Derivative Instruments in Consolidated Balance Sheet Other (Details) - USD ($) $ in Millions		Mar. 31, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Derivative Assets		$ 9	$ 11
Derivative Liabilities		10	9
Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative Assets	[1]	8	10
Deferred Charges and Other Assets
Derivatives, Fair Value [Line Items]
Derivative Assets	[1]	1	1
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative Assets		9	11
Derivative Liabilities		2	1
Designated as Hedging Instrument | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities		2	1
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative Assets		0	0
Derivative Liabilities		8	8
Not Designated as Hedging Instrument | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities		5
Not Designated as Hedging Instrument | Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities		3
Not Designated as Hedging Instrument | Energy Related Derivative
Derivatives, Fair Value [Line Items]
Derivative Assets		0	0
Derivative Liabilities	[2]	$ 8	$ 8

[1] Includes $8 million recorded in Other current assets and $1 million recorded in Deferred charges and other assets in the accompanying balance sheet.

[2] Includes $5 million recorded in Other accrued liabilities and $3 million recorded in Other liabilities in the accompanying consolidated balance sheet.