LONG-TERM AND SHORT-TERM DEBT (Tables)

9 Months Ended

Sep. 30, 2016

Short-term Debt [Line Items]

Schedule of Line of Credit Facilities [Table Text Block]

	September 30, 2016
Millions of dollars	Total		SCANA			Consolidated SCE&G			PSNC  Energy
Lines of credit:
Five-year, expiring December 2020	$	1,300.0	$	400.0		$	700.0		$	200.0
Fuel Company five-year, expiring December 2020	$	500.0	—			$	500.0		—
Three-year, expiring December 2018	$	200.0	—			$	200.0		—
Total committed long-term	$	2,000.0	$	400.0		$	1,400.0		$	200.0
Outstanding commercial paper (270 or fewer days)	$	777.6	$	16.0		$	714.2		$	47.4
Weighted average interest rate			0.93		%	0.84		%	0.83		%
Letters of credit supported by LOC	$	3.3	$	3.0		$	0.3		—
Available	$	1,219.1	$	381.0		$	685.5		$	152.6

	December 31, 2015
Millions of dollars	Total		SCANA			Consolidated SCE&G			PSNC  Energy
Lines of credit:
Five-year, expiring December 2020	$	1,300.0	$	400.0		$	700.0		$	200.0
Fuel Company five-year, expiring December 2020	$	500.0	—			$	500.0		—
Three-year, expiring December 2018	$	200.0	—			$	200.0		—
Total committed long-term	$	2,000.0	$	400.0		$	1,400.0		$	200.0
Outstanding commercial paper (270 or fewer days)	$	531.4	$	37.4		$	420.2		$	73.8
Weighted average interest rate			1.19		%	0.74		%	0.77		%
Letters of credit supported by LOC	$	3.3	$	3.0		$	0.3		—
Available	$	1,465.4	$	359.6		$	979.6		$	126.2

SCEG

Short-term Debt [Line Items]

Schedule of Line of Credit Facilities [Table Text Block]

	September 30, 2016
Millions of dollars	Total		SCANA			Consolidated SCE&G			PSNC  Energy
Lines of credit:
Five-year, expiring December 2020	$	1,300.0	$	400.0		$	700.0		$	200.0
Fuel Company five-year, expiring December 2020	$	500.0	—			$	500.0		—
Three-year, expiring December 2018	$	200.0	—			$	200.0		—
Total committed long-term	$	2,000.0	$	400.0		$	1,400.0		$	200.0
Outstanding commercial paper (270 or fewer days)	$	777.6	$	16.0		$	714.2		$	47.4
Weighted average interest rate			0.93		%	0.84		%	0.83		%
Letters of credit supported by LOC	$	3.3	$	3.0		$	0.3		—
Available	$	1,219.1	$	381.0		$	685.5		$	152.6

	December 31, 2015
Millions of dollars	Total		SCANA			Consolidated SCE&G			PSNC  Energy
Lines of credit:
Five-year, expiring December 2020	$	1,300.0	$	400.0		$	700.0		$	200.0
Fuel Company five-year, expiring December 2020	$	500.0	—			$	500.0		—
Three-year, expiring December 2018	$	200.0	—			$	200.0		—
Total committed long-term	$	2,000.0	$	400.0		$	1,400.0		$	200.0
Outstanding commercial paper (270 or fewer days)	$	531.4	$	37.4		$	420.2		$	73.8
Weighted average interest rate			1.19		%	0.74		%	0.77		%
Letters of credit supported by LOC	$	3.3	$	3.0		$	0.3		—
Available	$	1,465.4	$	359.6		$	979.6		$	126.2