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Segment and Related Information
 9 Months Ended
Sep. 30, 2012
Segment Reporting [Abstract]  
SEGMENT AND RELATED INFORMATION
SEGMENT AND RELATED INFORMATION
Southern Company's reportable business segments are the sale of electricity in the Southeast by the four traditional operating companies and Southern Power. Revenues from sales by Southern Power to the traditional operating companies were $112 million and $330 million for the three and nine months ended September 30, 2012, respectively, and $85 million and $239 million for the three and nine months ended September 30, 2011, respectively. The "All Other" column includes parent Southern Company, which does not allocate operating expenses to business segments. Also, this category includes segments below the quantitative threshold for separate disclosure. These segments include investments in telecommunications and leveraged lease projects. All other intersegment revenues are not material. Financial data for business segments and products and services was as follows:
 
 
 
Electric Utilities
 
 
 
 
 
 
 
 
Traditional
Operating
Companies
 
Southern
Power
 
Eliminations
 
Total
 
All
Other
 
Eliminations
 
Consolidated
 
 
(in millions)
Three Months Ended September 30, 2012:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating revenues
 
$
4,794

 
$
355

 
$
(116
)
 
$
5,033

 
$
36

 
$
(20
)
 
$
5,049

Segment net income (loss)(a)
 
908

 
68

 
1

 
977

 
1

 
(2
)
 
976

Nine Months Ended September 30, 2012:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating revenues
 
$
12,232

 
$
894

 
$
(338
)
 
$
12,788

 
$
109

 
$
(63
)
 
$
12,834

Segment net income (loss)(a)
 
1,797

 
144

 
—

 
1,941

 
30

 
(4
)
 
1,967

Total assets at September 30, 2012
 
$
57,862

 
$
3,782

 
$
(158
)
 
$
61,486

 
$
1,084

 
$
(607
)
 
$
61,963

Three Months Ended September 30, 2011:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating revenues
 
$
5,145

 
$
363

 
$
(97
)
 
$
5,411

 
$
38

 
$
(21
)
 
$
5,428

Segment net income (loss)(a)
 
862

 
56

 
—

 
918

 
—

 
(2
)
 
916

Nine Months Ended September 30, 2011:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating revenues
 
$
13,246

 
$
950

 
$
(288
)
 
$
13,908

 
$
114

 
$
(61
)
 
$
13,961

Segment net income (loss)(a)
 
1,805

 
138

 
—

 
1,943

 
2

 
(3
)
 
1,942

Total assets at December 31, 2011
 
$
54,622

 
$
3,581

 
$
(127
)
 
$
58,076

 
$
1,592

 
$
(401
)
 
$
59,267

(a) After dividends on preferred and preference stock of subsidiaries
Products and Services

 
 
Electric Utilities' Revenues
Period
 
Retail
 
Wholesale
 
Other
 
Total
 
 
(in millions)
Three Months Ended September 30, 2012
 
$
4,379

 
$
497

 
$
157

 
$
5,033

Three Months Ended September 30, 2011
 
4,693

 
557

 
161

 
5,411

Nine Months Ended September 30, 2012
 
$
11,068

 
$
1,261

 
$
459

 
$
12,788

Nine Months Ended September 30, 2011
 
11,931

 
1,513

 
464

 
13,908