RATE AND OTHER REGULATORY MATTERS GAS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2012
Entity Information [Line Items]
Public Utilities, Percent Increase (Decrease) in Retail Natural Gas Rates		0.60%
Public Utilities changes in Retail Natural Gas Rates Approved under RSA		$ 2.6
SCE&G
Entity Information [Line Items]
Public Utilities, Percent Increase (Decrease) in Retail Natural Gas Rates		0.60%
Public Utilities changes in Retail Natural Gas Rates Approved under RSA	$ 0.0	$ 2.6	$ 0.0