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SEGMENT INFORMATION (Tables)
 6 Months Ended
Jun. 30, 2017
Segment Reporting [Abstract]  
Financial information of reportable segments
The following tables show summarized financial information related to our reportable segments for the three and six months ended June 30, 2017 and 2016:
 
 
Utility Operations
 
 
 
 
 
 
 
 
 
 
(in millions)
 
Wisconsin
 
Illinois
 
Other States
 
Total Utility
Operations
 
Electric Transmission
 
Non-Utility Energy
 
Corporate
and Other
 
Reconciling
Eliminations
 
WEC Energy Group Consolidated
Three Months Ended
 
 

 
 

 
 
 
 

 
 
 
 
 
 

 
 

 
 

June 30, 2017
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
External revenues
 
$
1,303.2

 
$
253.2

 
$
65.7

 
$
1,622.1

 
$
—

 
$
6.2

 
$
3.2

 
$
—

 
$
1,631.5

Intersegment revenues
 
—

 
—

 
—

 
—

 
—

 
112.6

 
—

 
(112.6
)
 
—

Other operation and maintenance
 
458.7

 
104.9

 
23.3

 
586.9

 
—

 
2.7

 
2.8

 
(112.6
)
 
479.8

Depreciation and amortization
 
130.3

 
37.5

 
6.1

 
173.9

 
—

 
17.4

 
6.4

 
—

 
197.7

Operating income (loss)
 
223.6

 
41.4

 
4.7

 
269.7

 
—

 
98.7

 
(6.2
)
 
—

 
362.2

Equity in earnings of transmission affiliate
 
—

 
—

 
—

 
—

 
41.8

 
—

 
—

 
—

 
41.8

Interest expense
 
48.2

 
10.9

 
1.9

 
61.0

 
—

 
15.2

 
26.8

 
(1.1
)
 
101.9


 
 
Utility Operations
 
 
 
 
 
 
 
 
 
 
(in millions)
 
Wisconsin
 
Illinois
 
Other States
 
Total Utility
Operations
 
Electric Transmission
 
Non-Utility Energy
 
Corporate
and Other
 
Reconciling
Eliminations
 
WEC Energy Group Consolidated
Three Months Ended
 
 

 
 

 
 
 
 

 
 
 
 
 
 

 
 

 
 

June 30, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
External revenues
 
$
1,304.5

 
$
222.8

 
$
64.0

 
$
1,591.3

 
$
—

 
$
6.3

 
$
4.4

 
$
—

 
$
1,602.0

Intersegment revenues
 
0.2

 
—

 
—

 
0.2

 
—

 
107.6

 
—

 
(107.8
)
 
—

Other operation and maintenance
 
487.8

 
116.2

 
29.4

 
633.4

 
—

 
2.7

 
(6.3
)
 
(107.8
)
 
522.0

Depreciation and amortization
 
122.7

 
33.1

 
5.2

 
161.0

 
—

 
17.0

 
12.0

 
—

 
190.0

Operating income (loss)
 
214.7

 
22.6

 
2.3

 
239.6

 
—

 
94.1

 
(1.6
)
 
—

 
332.1

Equity in earnings of transmission affiliate
 
—

 
—

 
—

 
—

 
30.9

 
—

 
—

 
—

 
30.9

Interest expense
 
44.4

 
9.8

 
2.1

 
56.3

 
—

 
15.6

 
30.2

 
(2.0
)
 
100.1


 
 
Utility Operations
 
 
 
 
 
 
 
 
 
 
(in millions)
 
Wisconsin
 
Illinois
 
Other States
 
Total Utility
Operations
 
Electric Transmission
 
Non-Utility Energy
 
Corporate
and Other
 
Reconciling
Eliminations
 
WEC Energy Group Consolidated
Six Months Ended
 
 

 
 

 
 
 
 

 
 
 
 
 
 

 
 

 
 

June 30, 2017
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
External revenues
 
$
2,915.3

 
$
778.5

 
$
223.6

 
$
3,917.4

 
$
—

 
$
12.5

 
$
6.1

 
$
—

 
$
3,936.0

Intersegment revenues
 
—

 
—

 
—

 
—

 
—

 
221.6

 
—

 
(221.6
)
 
—

Other operation and maintenance
 
921.6

 
225.8

 
51.6

 
1,199.0

 
—

 
3.1

 
1.2

 
(221.6
)
 
981.7

Depreciation and amortization
 
259.6

 
73.7

 
12.1

 
345.4

 
—

 
34.9

 
12.0

 
—

 
392.3

Operating income (loss)
 
555.9

 
196.8

 
38.1

 
790.8

 
—

 
196.1

 
(7.4
)
 
—

 
979.5

Equity in earnings of transmission affiliate
 
—

 
—

 
—

 
—

 
83.7

 
—

 
—

 
—

 
83.7

Interest expense
 
96.9

 
22.0

 
4.2

 
123.1

 
—

 
30.5

 
55.9

 
(2.9
)
 
206.6


 
 
Utility Operations
 
 
 
 
 
 
 
 
 
 
(in millions)
 
Wisconsin
 
Illinois
 
Other States
 
Total Utility
Operations
 
Electric Transmission
 
Non-Utility Energy
 
Corporate
and Other
 
Reconciling
Eliminations
 
WEC Energy Group Consolidated
Six Months Ended
 
 

 
 

 
 
 
 

 
 
 
 
 
 

 
 

 
 

June 30, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
External revenues
 
$
2,884.3

 
$
671.3

 
$
212.4

 
$
3,768.0

 
$
—

 
$
12.5

 
$
16.3

 
$
—

 
$
3,796.8

Intersegment revenues
 
0.3

 
—

 
—

 
0.3

 
—

 
212.1

 
—

 
(212.4
)
 
—

Other operation and maintenance
 
979.1

 
234.1

 
59.4

 
1,272.6

 
—

 
3.1

 
(9.8
)
 
(212.4
)
 
1,053.5

Depreciation and amortization
 
245.6

 
65.9

 
10.3

 
321.8

 
—

 
34.0

 
22.1

 
—

 
377.9

Operating income (loss)
 
542.2

 
159.6

 
34.1

 
735.9

 
—

 
187.4

 
(1.9
)
 
—

 
921.4

Equity in earnings of transmission affiliate
 
—

 
—

 
—

 
—

 
69.4

 
—

 
—

 
—

 
69.4

Interest expense
 
88.9

 
19.5

 
4.6

 
113.0

 
—

 
31.2

 
61.5

 
(4.7
)
 
201.0