DERIVATIVES AND HEDGING ACTIVITIES Impact of Derivative Instruments in Consolidated Balance Sheet Other (Details) - USD ($) $ in Millions		Jun. 30, 2020		Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative Assets		$ 3	[1]	$ 68	[2]
Derivative Liabilities	[3]	23		7
Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative Assets				14
Deferred charges and other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets				54
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative Assets		3		68
Derivative Liabilities		21		4
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative Assets		0		0
Derivative Liabilities		$ 2		$ 3

[1] $3  

[2] $68  

[3] $23