CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Assets
Utility Plant In Service	$ 12,119	$ 11,865
Accumulated Depreciation and Amortization	(3,965)	(3,811)
Construction Work in Progress	2,558	2,084
Plant to be Retired, Net	344	362
Nuclear Fuel, Net of Accumulated Amortization	296	166
Goodwill, Net of Writedown of $230	230	230
Utility Plant, Net	11,582	10,896
Nonutility Property and Investments:
Nonutility property, net of accumulated depreciation	315	306
Assets held in trust, net-nuclear decommissioning	98	94
Other investments	91	87
Nonutility Property and Investments, Net	504	487
Current Assets:
Cash and cash equivalents	30	72
Receivables, net of allowance for uncollectible accounts	710	780
Inventories (at average cost):
Fuel	263	305
Materials and supplies	145	136
Prepayments and other	194	223
Deferred income taxes	9	11
Total Current Assets	1,351	1,527
Deferred Debits and Other Assets:
Regulatory Assets, Noncurrent	1,333.0	1,464.0
Other	227	242
Total Deferred Debits and Other Assets	1,560	1,706
Total	14,997	14,616
Capitalization and Liabilities
Common equity	4,598	4,154
Long-Term Debt, Net	5,431	4,949
Total Capitalization	10,029	9,103
Current Liabilities:
Short-term borrowings	378	623
Current portion of long-term debt	19	172
Accounts payable	340	428
Customer deposits and customer prepayments	83	86
Taxes accrued	137	164
Interest accrued	75	82
Dividends declared	71	66
Derivative financial instruments	12	80
Other	88	110
Total Current Liabilities	1,203	1,811
Deferred Credits and Other Liabilities:
Deferred income taxes, net	1,723	1,653
Deferred investment tax credits	33	36
Asset retirement obligations	576	561
Pension and other postretirement benefits	263	387
Regulatory liabilities	1,007	882
Other	163	183
Total Deferred Credits and Other Liabilities	3,765	3,702
Commitments and Contingencies (Note 9)
Total	14,997	14,616
SCEG
Assets
Utility Plant In Service	10,310	10,096
Accumulated Depreciation and Amortization	(3,456)	(3,322)
Construction Work in Progress	2,521	2,073
Plant to be Retired, Net	344	362
Nuclear Fuel, Net of Accumulated Amortization	296	166
Utility Plant, Net	10,015	9,375
Nonutility Property and Investments:
Nonutility property, net of accumulated depreciation	68	57
Assets held in trust, net-nuclear decommissioning	98	94
Other investments	2	3
Nonutility Property and Investments, Net	168	154
Current Assets:
Cash and cash equivalents	17	51
Receivables, net of allowance for uncollectible accounts	523	483
Due from Affiliate, Current	20	2
Inventories (at average cost):
Fuel	161	204
Materials and supplies	130	126
Prepayments and other	164	143
Total Current Assets	1,015	1,009
Deferred Debits and Other Assets:
Regulatory Assets, Noncurrent	1,259.0	1,377.0
Other	237	189
Total Deferred Debits and Other Assets	1,496	1,566
Total	12,694	12,104
Capitalization and Liabilities
Common equity	4,336	3,929
Stockholders' Equity Attributable to Noncontrolling Interest	117	114
Long-Term Debt, Net	4,043	3,557
Total Capitalization	8,496	7,600
Current Liabilities:
Short-term borrowings	310	449
Current portion of long-term debt	14	165
Accounts payable	210	281
Due to Affiliate, Current	122.0	124.0
Customer deposits and customer prepayments	53	51
Taxes accrued	158	151
Interest accrued	53	63
Dividends declared	67	46
Derivative financial instruments	2	66
Other	41	50
Total Current Liabilities	1,030	1,446
Deferred Credits and Other Liabilities:
Deferred income taxes, net	1,529	1,479
Deferred investment tax credits	33	36
Asset retirement obligations	549	535
Pension and other postretirement benefits	198	254
Regulatory liabilities	781	665
Other	78	89
Total Deferred Credits and Other Liabilities	3,168	3,058
Commitments and Contingencies (Note 9)
Total	$ 12,694	$ 12,104