CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Assets
Utility Plant In Service	$ 12,037	$ 11,865
Accumulated Depreciation and Amortization	(3,916)	(3,811)
Construction Work in Progress	2,379	2,084
Plant to be Retired, Net	351	362
Nuclear Fuel, Net of Accumulated Amortization	267	166
Goodwill, Net of Writedown of $230	230	230
Utility Plant, Net	11,348	10,896
Nonutility Property and Investments:
Nonutility property, net of accumulated depreciation	313	306
Assets held in trust, net-nuclear decommissioning	95	94
Other investments	89	87
Nonutility Property and Investments, Net	497	487
Current Assets:
Cash and cash equivalents	92	72
Receivables, net of allowance for uncollectible accounts	685	780
Inventories (at average cost):
Fuel	271	304
Materials and supplies	140	136
Emission allowances	1	1
Prepayments and other	218	223
Deferred income taxes	12	11
Total Current Assets	1,419	1,527
Deferred Debits and Other Assets:
Regulatory Assets, Noncurrent	1,439.0	1,464.0
Other	235	242
Total Deferred Debits and Other Assets	1,674	1,706
Total	14,938	14,616
Capitalization and Liabilities
Common equity	4,506	4,154
Long-Term Debt, Net	5,432	4,949
Total Capitalization	9,938	9,103
Current Liabilities:
Short-term borrowings	304	623
Current portion of long-term debt	23	172
Accounts payable	401	428
Customer deposits and customer prepayments	79	86
Taxes accrued	101	164
Interest accrued	82	82
Dividends declared	71	66
Derivative financial instruments	14	80
Other	88	110
Total Current Liabilities	1,163	1,811
Deferred Credits and Other Liabilities:
Deferred income taxes, net	1,698	1,653
Deferred investment tax credits	34	36
Asset retirement obligations	570	561
Pension and other postretirement benefits	392	387
Regulatory liabilities	976	882
Other	167	183
Total Deferred Credits and Other Liabilities	3,837	3,702
Commitments and Contingencies (Note 9)	0	0
Total	14,938	14,616
SCEG
Assets
Utility Plant In Service	10,242	10,096
Accumulated Depreciation and Amortization	(3,414)	(3,322)
Construction Work in Progress	2,356	2,073
Plant to be Retired, Net	351	362
Nuclear Fuel, Net of Accumulated Amortization	267	166
Utility Plant, Net	9,802	9,375
Nonutility Property and Investments:
Nonutility property, net of accumulated depreciation	64	57
Assets held in trust, net-nuclear decommissioning	95	94
Other investments	2	3
Nonutility Property and Investments, Net	161	154
Current Assets:
Cash and cash equivalents	50	51
Receivables, net of allowance for uncollectible accounts	492	483
Due from Affiliate, Current	12	2
Inventories (at average cost):
Fuel	183	203
Materials and supplies	128	126
Emission allowances	1	1
Prepayments and other	161	143
Total Current Assets	1,027	1,009
Deferred Debits and Other Assets:
Regulatory Assets, Noncurrent	1,352.0	1,377.0
Other	190	189
Total Deferred Debits and Other Assets	1,542	1,566
Total	12,532	12,104
Capitalization and Liabilities
Common equity	4,234	3,929
Stockholders' Equity Attributable to Noncontrolling Interest	116	114
Long-Term Debt, Net	4,043	3,557
Total Capitalization	8,393	7,600
Current Liabilities:
Short-term borrowings	238	449
Current portion of long-term debt	16	165
Accounts payable	269	281
Due to Affiliate, Current	109.0	124.0
Customer deposits and customer prepayments	53	51
Taxes accrued	113	151
Interest accrued	64	63
Dividends declared	64	46
Derivative financial instruments	2	66
Other	38	50
Total Current Liabilities	966	1,446
Deferred Credits and Other Liabilities:
Deferred income taxes, net	1,506	1,479
Deferred investment tax credits	34	36
Asset retirement obligations	543	535
Pension and other postretirement benefits	255	254
Regulatory liabilities	753	665
Other	82	89
Total Deferred Credits and Other Liabilities	3,173	3,058
Commitments and Contingencies (Note 9)	0	0
Total	$ 12,532	$ 12,104