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Business Segments (Tables)
 3 Months Ended
Mar. 31, 2016
Segment Reporting Information [Line Items]  
Business Segment Data
 
Three Months Ended March 31, 2016
 
 
 
 
 
 
 
Total

 
 
 
 
 
 
 
Regulated

 
International

 
Commercial

 
Reportable

 
 
 
 
 
 
(in millions)
Utilities

 
Energy

 
Portfolio

 
Segments

 
Other

 
Eliminations

 
Consolidated

Unaffiliated revenues
$
5,250

 
$
246

 
$
114

 
$
5,610

 
$
12

 
$
—

 
$
5,622

Intersegment revenues
9

 
—

 
—

 
9

 
17

 
(26
)
 
—

Total revenues
$
5,259

 
$
246

 
$
114

 
$
5,619

 
$
29

 
$
(26
)
 
$
5,622

Segment income (loss)(a)
$
695

 
$
123

 
$
27

 
$
845

 
$
(154
)
 
$
—

 
$
691

Add back noncontrolling interests
 
 
 
 
 
 
 
 
 
 
 
 
5

Income from discontinued operations, net of tax
 
 
 
 
 
 
 
 
 
 
 
 
3

Net income
 
 
 
 
 
 
 
 
 
 
 
 
$
699

Segment assets
$
111,838

 
$
3,247

 
$
4,183

 
$
119,268

 
$
2,263

 
$
178

 
$
121,709

(a)    Other includes $74 million of after-tax costs to achieve mergers and a $12 million after-tax charge related to cost savings initiatives.
 
Three Months Ended March 31, 2015
 
 
 
 
 
 
 
Total

 
 
 
 
 
 
 
Regulated

 
International

 
Commercial

 
Reportable

 
 
 
 
 
 
(in millions)
Utilities

 
Energy

 
Portfolio

 
Segments

 
Other

 
Eliminations

 
Consolidated

Unaffiliated revenues
$
5,713

 
$
273

 
$
73

 
$
6,059

 
$
6

 
$
—

 
$
6,065

Intersegment revenues
10

 
—

 
—

 
10

 
21

 
(31
)
 
—

Total revenues
$
5,723

 
$
273

 
$
73

 
$
6,069

 
$
27

 
$
(31
)
 
$
6,065

Segment income (loss)(a)
$
774

 
$
36

 
$
7

 
$
817

 
$
(43
)
 
$
(1
)
 
$
773

Add back noncontrolling interests
 
 
 
 
 
 
 
 
 
 
 
 
3

Income from discontinued operations, net of tax
 
 
 
 
 
 
 
 
 
 
 
 
91

Net income
 
 
 
 
 
 
 
 
 
 
 
 
$
867

Segment assets
$
106,642

 
$
4,892

 
$
6,202

 
$
117,736

 
$
4,230

 
$
176

 
$
122,142

(a)     Other includes after-tax costs to achieve the 2012 Progress Energy merger of $13 million.
The following table summarizes the net loss for Other for each of these entities.
 
Three Months Ended
 
March 31,
(in millions)
2016

 
2015

Duke Energy Carolinas
$
(17
)
 
$
(8
)
Progress Energy
(49
)
 
(42
)
Duke Energy Progress
(8
)
 
(4
)
Duke Energy Florida
(4
)
 
(3
)
Duke Energy Ohio
(9
)
 
(2
)
Duke Energy Indiana
(2
)
 
(2
)
Duke Energy Ohio [Member]  
Segment Reporting Information [Line Items]  
Business Segment Data
The following table summarizes segment information prior to the sale of the nonregulated Midwest generation business.
 
Three Months Ended March 31, 2015
 
 
 
 
 
Total

 
 
 
 
 
 
 
Regulated

 
Commercial

 
Reportable

 
 
 
 
 
 
(in millions)
Utilities

 
Portfolio

 
Segments

 
Other

 
Eliminations

 
Consolidated

Total revenues
$
572

 
$
14

 
$
586

 
$
—

 
$
—

 
$
586

Segment income (loss)
$
70

 
$
(9
)
 
$
61

 
$
(2
)
 
$
—

 
$
59

Income from discontinued operations, net of tax
 
 
 
 
 
 
 
 
 
 
90

Net income
 
 
 
 
 
 
 
 
 
 
$
149

Segment assets
$
6,782

 
$
2,984

 
$
9,766

 
$
43

 
$
(13
)
 
$
9,796