COMMITMENTS AND CONTINGENT LIABILITIES COMMITMENTS AND CONTINGENT LIABILITIES (Tables)

6 Months Ended

Jun. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule Of Impacts from the Initial and Second ROE Complaints [Table Text Block]

The recognition of the obligations associated with the complaints resulted in a reduction of revenues and net income and additional interest expense as set forth in the table below for the periods indicated.

	Three months ended				Six months ended
	June 30,				June 30,
(in millions)	2017		2016		2017		2016
Revenue reduction	$	—	$	8	$	—	$	26
Interest expense increase	2		2		3		3
Estimated net income reduction	1		6		2		18