DERIVATIVE FINANCIAL INSTRUMENTS (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	$ (7)	$ 8	$ 58
Asset Derivatives Fair Value	44	88
Derivative Assets	44	87
Derivative Asset, Fair Value, Gross Liability		(1)
Derivative Liability, Fair Value, Gross Liability	28	123
Derivative Liability, Fair Value, Gross Asset	0	(1)
Derivative Liability, Fair Value, Amount Offset Against Collateral	2	27
Derivative Liabilities	28	122
Derivative, Collateral, Right to Reclaim Cash	25	78
Derivative Asset, Fair Value, Amount Offset Against Collateral	43	70
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	(1)	(17)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	(1)	(17)
Prepayments and other current assets [member]
Derivative [Line Items]
Derivative Assets	21	50
Other deferred debits and other assets
Derivative [Line Items]
Derivative Assets	23	37
Other current liabilities
Derivative [Line Items]
Derivative Liabilities	10	80
Other deferred credits and other liabilities
Derivative [Line Items]
Derivative Liabilities	18	42
Derivatives designated as hedging instruments
Derivative [Line Items]
Asset Derivatives Fair Value	2	74
Derivative Liability, Fair Value, Gross Liability	19	110
Derivatives not designated as hedging instruments
Derivative [Line Items]
Asset Derivatives Fair Value	42	14
Derivative Liability, Fair Value, Gross Liability	9	13
Interest Rate Contract
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(5)	4	42
Asset Derivatives Fair Value	32	73
Derivative Assets	32	73
Derivative Liability, Fair Value, Gross Liability	20	106
Derivative Liability, Fair Value, Amount Offset Against Collateral	0	22
Derivative Liabilities	20	106
Derivative, Collateral, Right to Reclaim Cash	19	67
Derivative Asset, Fair Value, Amount Offset Against Collateral	31	56
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	(1)	(17)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	(1)	(17)
Interest Rate Contract | Derivatives designated as hedging instruments | Prepayments and other current assets [member]
Derivative [Line Items]
Asset Derivatives Fair Value		42
Interest Rate Contract | Derivatives designated as hedging instruments | Other deferred debits and other assets
Derivative [Line Items]
Asset Derivatives Fair Value		31
Interest Rate Contract | Derivatives designated as hedging instruments | Other current liabilities
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	5	70
Interest Rate Contract | Derivatives designated as hedging instruments | Other deferred credits and other liabilities
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		36
Interest Rate Contract | Derivatives not designated as hedging instruments
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(39)
Interest Rate Contract | Derivatives not designated as hedging instruments | Prepayments and other current assets [member]
Derivative [Line Items]
Asset Derivatives Fair Value	13
Interest Rate Contract | Derivatives not designated as hedging instruments | Other deferred debits and other assets
Derivative [Line Items]
Asset Derivatives Fair Value	19
Interest Rate Contract | Derivatives not designated as hedging instruments | Other current liabilities
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	1
Commodity contracts
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(2)	4	16
Asset Derivatives Fair Value	4	2
Derivative Assets	4	2
Derivative Liability, Fair Value, Gross Liability		4
Derivative Liability, Fair Value, Amount Offset Against Collateral		4
Derivative Liabilities		4
Derivative Asset, Fair Value, Amount Offset Against Collateral	4	2
Commodity contracts | Derivatives designated as hedging instruments | Prepayments and other current assets [member]
Derivative [Line Items]
Asset Derivatives Fair Value	2	1
Commodity contracts | Derivatives designated as hedging instruments | Other current liabilities
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		4
Commodity contracts | Derivatives designated as hedging instruments | Other deferred credits and other liabilities
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	14
Commodity contracts | Derivatives not designated as hedging instruments | Prepayments and other current assets [member]
Derivative [Line Items]
Asset Derivatives Fair Value	2	1
Derivative Liability, Fair Value, Gross Liability		1
Other Energy Management Contract [Member]
Derivative [Line Items]
Asset Derivatives Fair Value	8	13
Derivative Assets	8	12
Derivative Asset, Fair Value, Gross Liability		(1)
Derivative Liability, Fair Value, Gross Liability	8	13
Derivative Liability, Fair Value, Gross Asset	0	(1)
Derivative Liability, Fair Value, Amount Offset Against Collateral	2	1
Derivative Liabilities	8	12
Derivative, Collateral, Right to Reclaim Cash	6	11
Derivative Asset, Fair Value, Amount Offset Against Collateral	8	12
Other Energy Management Contract [Member] | Derivatives not designated as hedging instruments | Prepayments and other current assets [member]
Derivative [Line Items]
Asset Derivatives Fair Value	4	7
Other Energy Management Contract [Member] | Derivatives not designated as hedging instruments | Other deferred debits and other assets
Derivative [Line Items]
Asset Derivatives Fair Value	4	6
Derivative Liability, Fair Value, Gross Liability	4	6
Other Energy Management Contract [Member] | Derivatives not designated as hedging instruments | Other current liabilities
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	4	6
SCE&G
Derivative [Line Items]
Derivative Assets	32	73
Derivative Liabilities	2	75
SCE&G | Prepayments and other current assets [member]
Derivative [Line Items]
Derivative Assets	13	42
SCE&G | Other deferred debits and other assets
Derivative [Line Items]
Derivative Assets	19	31
SCE&G | Other current liabilities
Derivative [Line Items]
Derivative Liabilities	2	66
SCE&G | Other deferred credits and other liabilities
Derivative [Line Items]
Derivative Liabilities		9
SCE&G | Derivatives designated as hedging instruments
Derivative [Line Items]
Asset Derivatives Fair Value		73
Derivative Liability, Fair Value, Gross Liability	1	75
SCE&G | Derivatives not designated as hedging instruments
Derivative [Line Items]
Asset Derivatives Fair Value	32
Derivative Liability, Fair Value, Gross Liability	1
SCE&G | Interest Rate Contract
Derivative [Line Items]
Asset Derivatives Fair Value	32	73
Derivative Assets	32	73
Derivative Liability, Fair Value, Gross Liability	2	75
Derivative Liability, Fair Value, Amount Offset Against Collateral	0	23
Derivative Liabilities	2	75
Derivative, Collateral, Right to Reclaim Cash	1	35
Derivative Asset, Fair Value, Amount Offset Against Collateral	31	56
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	(1)	(17)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	(1)	(17)
SCE&G | Interest Rate Contract | Derivatives designated as hedging instruments | Prepayments and other current assets [member]
Derivative [Line Items]
Asset Derivatives Fair Value		42
SCE&G | Interest Rate Contract | Derivatives designated as hedging instruments | Other deferred debits and other assets
Derivative [Line Items]
Asset Derivatives Fair Value		31
SCE&G | Interest Rate Contract | Derivatives designated as hedging instruments | Other current liabilities
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	1	66
SCE&G | Interest Rate Contract | Derivatives designated as hedging instruments | Other deferred credits and other liabilities
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		9
SCE&G | Interest Rate Contract | Derivatives not designated as hedging instruments
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(39)
SCE&G | Interest Rate Contract | Derivatives not designated as hedging instruments | Prepayments and other current assets [member]
Derivative [Line Items]
Asset Derivatives Fair Value	13
SCE&G | Interest Rate Contract | Derivatives not designated as hedging instruments | Other deferred debits and other assets
Derivative [Line Items]
Asset Derivatives Fair Value	19
SCE&G | Interest Rate Contract | Derivatives not designated as hedging instruments | Other current liabilities
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 1