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RATE AND OTHER REGULATORY MATTERS (Tables)
6 Months Ended
Jun. 30, 2013
Regulatory Assets  
Demand reduction programs [Table Text Block]
Year
 
Effective
 
Amount
2012
 
First billing cycle of May
 
$19.6 million
2011
 
First billing cycle of June
 
$7.0 million
Schedule of Regulatory Assets [Table Text Block]
Millions of dollars
 
June 30,
2013
 
December 31,
2012
Regulatory Assets:
 
 

 
 

Accumulated deferred income taxes
 
$
253

 
$
254

Under-collections - electric fuel adjustment clause
 
71

 
66

Environmental remediation costs
 
42

 
44

AROs and related funding
 
328

 
319

Franchise agreements
 
33

 
36

Deferred employee benefit plan costs
 
445

 
460

Planned major maintenance
 

 
6

Deferred losses on interest rate derivatives
 
128

 
151

Deferred pollution control costs
 
38

 
38

Unrecovered plant
 
19

 
20

Other
 
82

 
70

Total Regulatory Assets
 
$
1,439

 
$
1,464

Schedule of Regulatory Liabilities [Table Text Block]
Regulatory Liabilities:
 
 

 
 

Accumulated deferred income taxes
 
$
20

 
$
21

Asset removal costs
 
709

 
692

Storm damage reserve
 
27

 
27

Monetization of bankruptcy claim
 
30

 
32

Deferred gains on interest rate derivatives
 
185

 
110

Planned major maintenance
 
4

 

Other
 
1

 

Total Regulatory Liabilities
 
$
976

 
$
882

Schedule of Changes in Electric Rate BLRA [Table Text Block]
Year
 
Action
 
Amount
2012
 
2.3
%
Increase
 
$52.1 million
2011
 
2.4
%
Increase
 
$52.8 million
Schedule of Changes in Gas Rate RSA [Table Text Block]
Year
 
Action
 
Amount
2012
 
2.1
%
Increase
 
$7.5 million
2011
 
2.1
%
Increase
 
$8.6 million
SCEG
 
Regulatory Assets  
Demand reduction programs [Table Text Block]
Year
 
Effective
 
Amount
2012
 
First billing cycle of May
 
$19.6 million
2011
 
First billing cycle of June
 
$7.0 million
Schedule of Regulatory Assets [Table Text Block]
Millions of dollars
 
June 30,
2013
 
December 31,
2012
Regulatory Assets:
 
 

 
 

Accumulated deferred income taxes
 
$
248

 
$
248

Under collections – electric fuel adjustment clause
 
71

 
66

Environmental remediation costs
 
38

 
39

AROs and related funding
 
311

 
304

Franchise agreements
 
33

 
36

Deferred employee benefit plan costs
 
393

 
405

Planned major maintenance
 

 
6

Deferred losses on interest rate derivatives
 
128

 
151

Deferred pollution control costs
 
38

 
38

Unrecovered plant
 
19

 
20

Other
 
73

 
64

Total Regulatory Assets
 
$
1,352

 
$
1,377

Schedule of Regulatory Liabilities [Table Text Block]
Regulatory Liabilities:
 
 
 
 
Accumulated deferred income taxes
 
$
20

 
$
21

Asset removal costs
 
517

 
507

Storm damage reserve
 
27

 
27

Deferred gains on interest rate derivatives
 
185

 
110

Planned major maintenance
 
4

 

Total Regulatory Liabilities
 
$
753

 
$
665

Schedule of Changes in Electric Rate BLRA [Table Text Block]
years indicated:
Year
 
Action
 
Amount
2012
 
2.3
%
Increase
 
$52.1 million
2011
 
2.4
%
Increase
 
$52.8 million
Schedule of Changes in Gas Rate RSA [Table Text Block]
e years indicated:
Year
 
Action
 
Amount
2012
 
2.1
%
Increase
 
$7.5 million
2011
 
2.1
%
Increase
 
$8.6 million