CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Utility Plant In Service	$ 11,937	$ 11,865
Accumulated Depreciation and Amortization	(3,867)	(3,811)
Construction Work in Progress	2,250	2,084
Plant to be Retired, Net	359	362
Nuclear Fuel, Net of Accumulated Amortization	251	166
Goodwill, Net of Writedown of $230	230	230
Utility Plant, Net	11,160	10,896
Nonutility Property and Investments:
Nonutility property, net of accumulated depreciation	306	306
Assets held in trust, net-nuclear decommissioning	97	94
Other investments	89	87
Nonutility Property and Investments, Net	492	487
Current Assets:
Cash and cash equivalents	43	72
Receivables, net of allowance for uncollectible accounts	775	780
Inventories (at average cost):
Fuel	250	304
Materials and supplies	140	136
Emission allowances	1	1
Prepayments and other	185	223
Deferred income taxes	10	11
Total Current Assets	1,404	1,527
Deferred Debits and Other Assets:
Regulatory Assets, Noncurrent	1,451.0	1,464.0
Other	250	242
Total Deferred Debits and Other Assets	1,701	1,706
Total	14,757	14,616
Capitalization and Liabilities
Common equity	4,463	4,154
Long-Term Debt, Net	5,039	4,949
Total Capitalization	9,502	9,103
Current Liabilities:
Short-term borrowings	530	623
Current portion of long-term debt	173	172
Accounts payable	360	428
Customer deposits and customer prepayments	82	86
Taxes accrued	63	164
Interest accrued	76	82
Dividends declared	70	66
Derivative financial instruments	66	80
Other	76	110
Total Current Liabilities	1,496	1,811
Deferred Credits and Other Liabilities:
Deferred income taxes, net	1,673	1,653
Deferred investment tax credits	35	36
Asset retirement obligations	567	561
Pension and other postretirement benefits	389	387
Regulatory liabilities	917	882
Other	178	183
Total Deferred Credits and Other Liabilities	3,759	3,702
Commitments and Contingencies (Note 9)	0	0
Total	14,757	14,616
SCEG
Assets
Utility Plant In Service	10,161	10,096
Accumulated Depreciation and Amortization	(3,371)	(3,322)
Construction Work in Progress	2,227	2,073
Plant to be Retired, Net	359	362
Nuclear Fuel, Net of Accumulated Amortization	251	166
Utility Plant, Net	9,627	9,375
Nonutility Property and Investments:
Nonutility property, net of accumulated depreciation	56	57
Assets held in trust, net-nuclear decommissioning	97	94
Other investments	2	3
Nonutility Property and Investments, Net	155	154
Current Assets:
Cash and cash equivalents	12	51
Receivables, net of allowance for uncollectible accounts	456	483
Due from Affiliate, Current	9	2
Inventories (at average cost):
Fuel	179	203
Materials and supplies	129	126
Emission allowances	1	1
Prepayments and other	148	143
Total Current Assets	934	1,009
Deferred Debits and Other Assets:
Regulatory Assets, Noncurrent	1,365.0	1,377.0
Other	197	189
Total Deferred Debits and Other Assets	1,562	1,566
Total	12,278	12,104
Capitalization and Liabilities
Common equity	4,177	3,929
Stockholders' Equity Attributable to Noncontrolling Interest	115	114
Long-Term Debt, Net	3,646	3,557
Total Capitalization	7,938	7,600
Current Liabilities:
Short-term borrowings	408	449
Current portion of long-term debt	165	165
Accounts payable	208	281
Due to Affiliate, Current	128.0	124.0
Customer deposits and customer prepayments	53	51
Taxes accrued	70	151
Interest accrued	51	63
Dividends declared	64	46
Derivative financial instruments	59	66
Other	30	50
Total Current Liabilities	1,236	1,446
Deferred Credits and Other Liabilities:
Deferred income taxes, net	1,491	1,479
Deferred investment tax credits	35	36
Asset retirement obligations	540	535
Pension and other postretirement benefits	254	254
Regulatory liabilities	697	665
Other	87	89
Total Deferred Credits and Other Liabilities	3,104	3,058
Commitments and Contingencies (Note 9)	0	0
Total	$ 12,278	$ 12,104