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SEGMENT INFORMATION
 6 Months Ended
Jun. 30, 2017
Segment Reporting [Abstract]  
SEGMENT INFORMATION
SEGMENT INFORMATION

At June 30, 2017, we reported six segments, which are described below.

•
The Wisconsin segment includes the electric and natural gas utility operations of WE, WG, and WPS, including WE's and WPS's electric and natural gas operations in the state of Michigan that were transferred to UMERC effective January 1, 2017.

•
The Illinois segment includes the natural gas utility and non-utility operations of PGL and NSG.

•
The other states segment includes the natural gas utility and non-utility operations of MERC and MGU.

•
The electric transmission segment includes our approximate 60% ownership interest in ATC, a for-profit, electric transmission company regulated by the FERC and certain state regulatory commissions.

•
Following the acquisition of Bluewater, our We Power segment was renamed the non-utility energy segment. This segment includes We Power, which owns and leases generating facilities to WE, and Bluewater, which owns underground natural gas storage facilities in Michigan. See Note 2, Acquisition, for more information on the Bluewater transaction.

•
The corporate and other segment includes the operations of the WEC Energy Group holding company, the Integrys holding company, the Peoples Energy, LLC holding company, Wispark LLC, Bostco, Wisvest, Wisconsin Energy Capital Corporation, WBS, WPS Power Development LLC, and ITF. In the first quarter of 2017, we sold substantially all of the remaining assets of Bostco and in the second quarter of 2016, we sold certain assets of Wisvest. The sale of ITF was completed in the first quarter of 2016. See Note 3, Dispositions, for more information on these sales.

All of our operations are located within the United States. 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