Segment Information (Tables)

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

Schedule of information concerning our reportable segments

The following tables show summarized financial information concerning our reportable segments for the three months ended March 31, 2016 and 2015:

(in millions)	Electric Utility		Natural Gas Utility		Steam Utility		Wisconsin Electric Power Company Consolidated
Three Months Ended March 31, 2016
Operating revenues *	$	822.0	$	139.9	$	13.6	$	975.5
Other operation and maintenance	326.3		18.5		3.4		348.2
Depreciation and amortization	71.6		7.6		1.2		80.4
Operating income	148.5		27.7		5.3		181.5
Equity in earnings of transmission affiliate	14.7		—		—		14.7
(in millions)	Electric Utility		Natural Gas Utility		Steam Utility		Wisconsin Electric Power Company Consolidated
Three Months Ended March 31, 2015
Operating revenues *	$	868.9	$	197.9	$	17.8	$	1,084.6
Other operation and maintenance	323.4		15.2		3.8		342.4
Depreciation and amortization	66.6		7.0		1.1		74.7
Operating income	158.8		38.7		7.2		204.7
Equity in earnings of transmission affiliate	14.2		—		—		14.2

* We account for all intersegment revenues at rates established by the PSCW. Intersegment revenues were not material.