CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net Income (Loss) Attributable to Parent [Abstract]
Income Available to Common Shareholders	$ 85	$ 72	$ 237	$ 193
Other Comprehensive Income (Loss)
Unrealized gains (losses) on cash flow hedging activities arising during period	0	(3)	3	(7)
Losses on cash flow hedging activities reclassified to net income	1	4	5	14
Amortization of deferred employee benefit plan costs reclassified to net income, net of tax	1	1	1	1
Other Comprehensive Income	2	2	9	8
Total Comprehensive Income (Loss)	87	74	246	201
SCEG
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	88	78	180	149
Other Comprehensive Income (Loss)
Amortization of deferred employee benefit plan costs reclassified to net income, net of tax	0	0	0	0
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	88	78	180	149
Total Comprehensive Income (Loss)			180	149
Genco
Other Comprehensive Income (Loss)
Less comprehensive income attributable to noncontrolling interest	(3)	(2)	(6)	(6)
Total Comprehensive Income (Loss)			6	6
SCE&G (including Fuel Company)
Other Comprehensive Income (Loss)
Total Comprehensive Income (Loss)	$ 85	$ 76	$ 174	$ 143