COMMITMENTS AND CONTINGENT LIABILITIES (Tables)

6 Months Ended

Jun. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

Schedule of Impacts from the Initial and Second ROE Complaints

The recognition of the obligations associated with the MISO ROE Complaints resulted in the following impacts to the condensed consolidated statements of comprehensive income:

	Three months ended				Six months ended
	June 30,				June 30,
(in millions)	2020		2019		2020		2019
Revenue increase	$	32	$	—	$	32	$	—
Interest expense (decrease) increase	(3)		2		(3)		4
Estimated net income increase (reduction)	26		(2)		25		(3)