CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net Income (Loss) Attributable to Parent [Abstract]
Income Available to Common Shareholders	$ 193	$ 151
Other Comprehensive Income (Loss)
Unrealized gains (losses) on cash flow hedging activities arising during period	1	3
(Gains) Losses on cash flow hedging activities reclassified to net income	(2)	4
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(1)	7
Other Comprehensive Income (Loss)	(1)	7
Total Comprehensive Income (Loss)	192	158
SCEG
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	126	92
Other Comprehensive Income (Loss)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	126	92
Total Comprehensive Income (Loss)	126	92
Genco
Other Comprehensive Income (Loss)
Less comprehensive income attributable to noncontrolling interest	3	3
SCE&G (including Fuel Company)
Net Income (Loss) Attributable to Parent [Abstract]
Income Available to Common Shareholders	123	89
Other Comprehensive Income (Loss)
Total Comprehensive Income (Loss)	$ 123	$ 89