CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net Income (Loss) Attributable to Parent [Abstract]
Income Available to Common Shareholders	$ 131	$ 122	$ 368	$ 315
Other Comprehensive Income (Loss)
Unrealized gains (losses) on cash flow hedging activities arising during period	(1)	1	3	(6)
Losses on cash flow hedging activities reclassified to net income	2	3	7	17
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Remeasurement and Curtailment Adjustement, Net of Tax	4	0	4	0
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	1	0	1	1
Other Comprehensive Income	(6)	(4)	(15)	(12)
Total Comprehensive Income (Loss)	137	126	383	327
SCEG
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	139	132	319	281
Other Comprehensive Income (Loss)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Remeasurement and Curtailment Adjustement, Net of Tax	1	0	1	0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	140	132	320	281
Total Comprehensive Income (Loss)			320	281
Genco
Other Comprehensive Income (Loss)
Less comprehensive income attributable to noncontrolling interest	(3)	(3)	(8)	(9)
Total Comprehensive Income (Loss)			8	9
SCE&G (including Fuel Company)
Other Comprehensive Income (Loss)
Total Comprehensive Income (Loss)	$ 137	$ 129	$ 312	$ 272