GOODWILL (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes to our goodwill balances by segment

The following table shows changes to our goodwill balances by segment during the nine months ended September 30, 2017:

(in millions)	Wisconsin		Illinois		Other States		Non-Utility Energy Infrastructure		Total
Goodwill balance as of January 1, 2017	$	2,104.3	$	758.7	$	183.2	$	—	$	3,046.2
Acquisition of Bluewater (1)	—		—		—		7.3		7.3
Goodwill balance as of September 30, 2017 (2)	$	2,104.3	$	758.7	$	183.2	$	7.3	$	3,053.5

⁽¹⁾  See Note 2, Acquisitions, for more information on the acquisition of Bluewater.

⁽²⁾  We had no accumulated impairment losses related to our goodwill as of September 30, 2017.