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Segments Of Business (Tables)
3 Months Ended
Mar. 31, 2014
Segment Reporting Information [Line Items]  
Schedule Of Segments Of Business
Certain financial information relating to Alliant Energy’s business segments is as follows. Intersegment revenues were not material to Alliant Energy’s operations.
 
Utilities
 
Non-Regulated,
 
Alliant Energy
 
Electric
 
Gas
 
Other
 
Total
 
Parent and Other
 
Consolidated
 
(in millions)
Three Months Ended March 31, 2014
 
 
 
 
 
 
 
 
 
 
 
Operating revenues

$675.8

 

$240.7

 

$22.8

 

$939.3

 

$13.5

 

$952.8

Operating income
94.3

 
43.0

 
7.9

 
145.2

 
9.0

 
154.2

Net income attributable to Alliant Energy common shareowners
 
 
 
 
 
 
98.2

 
9.8

 
108.0

Three Months Ended March 31, 2013
 
 
 
 
 
 
 
 
 
 
 
Operating revenues

$633.2

 

$197.3

 

$17.2

 

$847.7

 

$11.9

 

$859.6

Operating income
73.6

 
37.3

 
2.9

 
113.8

 
6.9

 
120.7

Amounts attributable to Alliant Energy common shareowners:
 
 
 
 
 
 
 
 
 
 
 
Income from continuing operations, net of tax
 
 
 
 
 
 
64.9

 
8.0

 
72.9

Loss from discontinued operations, net of tax
 
 
 
 
 
 

 
(3.0
)
 
(3.0
)
Net income attributable to Alliant Energy common shareowners
 
 
 
 
 
 
64.9

 
5.0

 
69.9


IPL [Member]
 
Segment Reporting Information [Line Items]  
Schedule Of Segments Of Business
Certain financial information relating to IPL’s business segments is as follows. Intersegment revenues were not material to IPL’s operations.
 
Electric
 
Gas
 
Other
 
Total
 
(in millions)
Three Months Ended March 31, 2014
 
 
 
 
 
 
 
Operating revenues

$374.2

 

$135.7

 

$19.0

 

$528.9

Operating income
26.5

 
23.3

 
7.7

 
57.5

Earnings available for common stock
 
 
 
 
 
 
43.4

Three Months Ended March 31, 2013
 
 
 
 
 
 
 
Operating revenues

$350.2

 

$114.3

 

$13.4

 

$477.9

Operating income
17.2

 
20.7

 
3.2

 
41.1

Earnings available for common stock
 
 
 
 
 
 
22.9

WPL [Member]
 
Segment Reporting Information [Line Items]  
Schedule Of Segments Of Business
Certain financial information relating to WPL’s business segments is as follows. Intersegment revenues were not material to WPL’s operations.
 
Electric
 
Gas
 
Other
 
Total
 
(in millions)
Three Months Ended March 31, 2014
 
 
 
 
 
 
 
Operating revenues

$301.6

 

$105.0

 

$3.8

 

$410.4

Operating income
67.8

 
19.7

 
0.2

 
87.7

Earnings available for common stock
 
 
 
 
 
 
54.8

Three Months Ended March 31, 2013
 
 
 
 
 
 
 
Operating revenues

$283.0

 

$83.0

 

$3.8

 

$369.8

Operating income (loss)
56.4

 
16.6

 
(0.3
)
 
72.7

Earnings available for common stock
 
 
 
 
 
 
42.0