RATE AND OTHER REGULATORY MATTERS (Details 3) (USD $) In Millions			6 Months Ended						6 Months Ended
	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2011 SCE&G Storm damage reserve	Jun. 30, 2010 SCE&G Storm damage reserve	Jun. 30, 2011 Accumulated deferred income taxes	Dec. 31, 2010 Accumulated deferred income taxes	Jun. 30, 2011 Asset removal costs	Dec. 31, 2010 Asset removal costs	Jun. 30, 2011 Storm damage reserve	Dec. 31, 2010 Storm damage reserve	Jun. 30, 2011 Monetization of bankruptcy claim	Dec. 31, 2010 Monetization of bankruptcy claim	Jun. 30, 2011 Deferred gains on interest rate derivatives	Dec. 31, 2010 Deferred gains on interest rate derivatives	Jun. 30, 2011 Other	Dec. 31, 2010 Other
Regulatory Liabilities:
Regulatory liabilities	$ 931	$ 913			$ 25	$ 26	$ 804	$ 780	$ 36	$ 38	$ 36	$ 37	$ 25	$ 26	$ 5	$ 6
Amount recovered through electric rates to offset incremental storm damage costs									100
Excess amount of storm damage costs which can be offset by amounts recovered through electric rates									2.5
Cost applied to storm damage cost reserve			$ 1.8	$ 1.5