LONG-TERM AND SHORT-TERM DEBT (Tables)

3 Months Ended

Mar. 31, 2016

Short-term Debt [Line Items]

Schedule of Line of Credit Facilities [Table Text Block]

	March 31, 2016
Millions of dollars	Total		SCANA			Consolidated SCE&G			PSNC  Energy
Lines of credit:
Five-year, expiring December 2020	$	1,300	$	400		$	700		$	200
Fuel Company five-year, expiring December 2020	$	500	—			$	500		—
Three-year, expiring December 2018	$	200	—			$	200		—
Total committed long-term	$	2,000	$	400		$	1,400		$	200
Outstanding commercial paper (270 or fewer days)	$	917	$	10		$	870		$	37
Weighted average interest rate			0.90		%	0.83		%	0.81		%
Letters of credit supported by LOC	$	3.3	$	3		$	0.3		—
Available	$	1,080	$	387		$	530		$	163

	December 31, 2015
Millions of dollars	Total		SCANA			Consolidated SCE&G			PSNC  Energy
Lines of credit:
Five-year, expiring December 2020	$	1,300	$	400		$	700		$	200
Fuel Company five-year, expiring December 2020	$	500	—			$	500		—
Three-year, expiring December 2018	$	200	—			$	200		—
Total committed long-term	$	2,000	$	400		$	1,400		$	200
Outstanding commercial paper (270 or fewer days)	$	531	$	37		$	420		$	74
Weighted average interest rate			1.19		%	0.74		%	0.77		%
Letters of credit supported by LOC	$	3.3	$	3		$	0.3		—
Available	$	1,466	$	360		$	980		$	126

SCEG

Short-term Debt [Line Items]

Schedule of Line of Credit Facilities [Table Text Block]

	March 31, 2016
Millions of dollars	Total		SCANA			Consolidated SCE&G			PSNC  Energy
Lines of credit:
Five-year, expiring December 2020	$	1,300	$	400		$	700		$	200
Fuel Company five-year, expiring December 2020	$	500	—			$	500		—
Three-year, expiring December 2018	$	200	—			$	200		—
Total committed long-term	$	2,000	$	400		$	1,400		$	200
Outstanding commercial paper (270 or fewer days)	$	917	$	10		$	870		$	37
Weighted average interest rate			0.90		%	0.83		%	0.81		%
Letters of credit supported by LOC	$	3.3	$	3		$	0.3		—
Available	$	1,080	$	387		$	530		$	163

	December 31, 2015
Millions of dollars	Total		SCANA			Consolidated SCE&G			PSNC  Energy
Lines of credit:
Five-year, expiring December 2020	$	1,300	$	400		$	700		$	200
Fuel Company five-year, expiring December 2020	$	500	—			$	500		—
Three-year, expiring December 2018	$	200	—			$	200		—
Total committed long-term	$	2,000	$	400		$	1,400		$	200
Outstanding commercial paper (270 or fewer days)	$	531	$	37		$	420		$	74
Weighted average interest rate			1.19		%	0.74		%	0.77		%
Letters of credit supported by LOC	$	3.3	$	3		$	0.3		—
Available	$	1,466	$	360		$	980		$	126