SEGMENT OF BUSINESS INFORMATION

9 Months Ended

Sep. 30, 2016

Segment Reporting Information [Line Items]

Segment Reporting Disclosure [Text Block]

SEGMENT OF BUSINESS INFORMATION

Regulated operations measure profitability using operating income; therefore, net income is not allocated to the Electric Operations and Gas Distribution segments. Marketing segments measure profitability using net income.

The Company's Gas Distribution segment is comprised of the local distribution operations of SCE&G and PSNC Energy which meet the criteria for aggregation. All Other includes the parent company, a services company and other nonreportable segments that were insignificant for all periods presented. In addition, All Other includes gains from the sales of CGT and SCI (see Dispositions in Note 1) and their operating results and assets prior to their sale in the first quarter of 2015. CGT and SCI were nonreportable segments during all periods presented. For the nine months ended September 30, 2015, operating income and net income for All Other include $235 million and $202 million, respectively, related to the sales of CGT and SCI. External revenue and intersegment revenue for All Other related to CGT and SCI were not significant during either period presented.

The Company
Millions of dollars	External Revenue		Intersegment Revenue			Operating Income			Net Income
Three Months Ended September 30, 2016
Electric Operations	$	817	$	1		$	364		n/a
Gas Distribution	111		—			(14		)	n/a
Retail Gas Marketing	68		—			n/a			$	(3	)
Energy Marketing	97		35			n/a			2
All Other	—		100			—			(7		)
Adjustments/Eliminations	—		(136		)	(2		)	197
Consolidated Total	$	1,093	$	—		$	348		$	189

Nine Months Ended September 30, 2016
Electric Operations	$	2,035	$	4		$	784	n/a
Gas Distribution	538		1			79		n/a
Retail Gas Marketing	315		—			n/a		$	17
Energy Marketing	283		83			n/a		6
All Other	—		302			—		(14		)
Adjustments/Eliminations	—		(390		)	37		462
Consolidated Total	$	3,171	$	—		$	900	$	471

Three Months Ended September 30, 2015
Electric Operations	$	742	$	1		$	313		n/a
Gas Distribution	112		2			(13		)	n/a
Retail Gas Marketing	68		—			n/a			$	(3	)
Energy Marketing	146		34			n/a			(1		)
All Other	—		102			—			(9		)
Adjustments/Eliminations	—		(139		)	(8		)	162
Consolidated Total	$	1,068	$	—		$	292		$	149

Nine Months Ended September 30, 2015
Electric Operations	$	2,008		$	4		$	728	n/a
Gas Distribution	609			2			88		n/a
Retail Gas Marketing	344			—			n/a		$	18
Energy Marketing	461			101			n/a		8
All Other	5			309			237		188
Adjustments/Eliminations	(4		)	(416		)	42		434
Consolidated Total	$	3,423		$	—		$	1,095	$	648

Consolidated SCE&G
Millions of dollars	External Revenue		Operating Income			Earnings Available to Common Shareholder
Three Months Ended September 30, 2016
Electric Operations	$	818	$	364		n/a
Gas Distribution	64		(5		)	n/a
Adjustments/Eliminations	—		—			$	201
Consolidated Total	$	882	$	359		$	201

Nine Months Ended September 30, 2016
Electric Operations	$	2,039	$	784	n/a
Gas Distribution	253		32		n/a
Adjustments/Eliminations	—		—		$	423
Consolidated Total	$	2,292	$	816	$	423

Three Months Ended September 30, 2015
Electric Operations	$	743	$	313		n/a
Gas Distribution	63		(6		)	n/a
Adjustments/Eliminations	—		—			$	164
Consolidated Total	$	806	$	307		$	164

Nine Months Ended September 30, 2015
Electric Operations	$	2,013	$	728	n/a
Gas Distribution	275		35		n/a
Adjustments/Eliminations	—		—		$	394
Consolidated Total	$	2,288	$	763	$	394

Segment Assets	The Company				Consolidated SCE&G
	September 30,		December 31,		September 30,		December 31,
Millions of dollars	2016		2015		2016		2015
Electric Operations	$	11,543	$	10,883	$	11,543	$	10,883
Gas Distribution	2,757		2,606		801		757
Retail Gas Marketing	140		106		n/a		n/a
Energy Marketing	58		95		n/a		n/a
All Other	985		998		n/a		n/a
Adjustments/Eliminations	2,963		2,458		3,634		3,125
Consolidated Total	$	18,446	$	17,146	$	15,978	$	14,765

SCEG

Segment Reporting Information [Line Items]

Segment Reporting Disclosure [Text Block]

SEGMENT OF BUSINESS INFORMATION

Regulated operations measure profitability using operating income; therefore, net income is not allocated to the Electric Operations and Gas Distribution segments. Marketing segments measure profitability using net income.

The Company's Gas Distribution segment is comprised of the local distribution operations of SCE&G and PSNC Energy which meet the criteria for aggregation. All Other includes the parent company, a services company and other nonreportable segments that were insignificant for all periods presented. In addition, All Other includes gains from the sales of CGT and SCI (see Dispositions in Note 1) and their operating results and assets prior to their sale in the first quarter of 2015. CGT and SCI were nonreportable segments during all periods presented. For the nine months ended September 30, 2015, operating income and net income for All Other include $235 million and $202 million, respectively, related to the sales of CGT and SCI. External revenue and intersegment revenue for All Other related to CGT and SCI were not significant during either period presented.

The Company
Millions of dollars	External Revenue		Intersegment Revenue			Operating Income			Net Income
Three Months Ended September 30, 2016
Electric Operations	$	817	$	1		$	364		n/a
Gas Distribution	111		—			(14		)	n/a
Retail Gas Marketing	68		—			n/a			$	(3	)
Energy Marketing	97		35			n/a			2
All Other	—		100			—			(7		)
Adjustments/Eliminations	—		(136		)	(2		)	197
Consolidated Total	$	1,093	$	—		$	348		$	189

Nine Months Ended September 30, 2016
Electric Operations	$	2,035	$	4		$	784	n/a
Gas Distribution	538		1			79		n/a
Retail Gas Marketing	315		—			n/a		$	17
Energy Marketing	283		83			n/a		6
All Other	—		302			—		(14		)
Adjustments/Eliminations	—		(390		)	37		462
Consolidated Total	$	3,171	$	—		$	900	$	471

Three Months Ended September 30, 2015
Electric Operations	$	742	$	1		$	313		n/a
Gas Distribution	112		2			(13		)	n/a
Retail Gas Marketing	68		—			n/a			$	(3	)
Energy Marketing	146		34			n/a			(1		)
All Other	—		102			—			(9		)
Adjustments/Eliminations	—		(139		)	(8		)	162
Consolidated Total	$	1,068	$	—		$	292		$	149

Nine Months Ended September 30, 2015
Electric Operations	$	2,008		$	4		$	728	n/a
Gas Distribution	609			2			88		n/a
Retail Gas Marketing	344			—			n/a		$	18
Energy Marketing	461			101			n/a		8
All Other	5			309			237		188
Adjustments/Eliminations	(4		)	(416		)	42		434
Consolidated Total	$	3,423		$	—		$	1,095	$	648

Consolidated SCE&G
Millions of dollars	External Revenue		Operating Income			Earnings Available to Common Shareholder
Three Months Ended September 30, 2016
Electric Operations	$	818	$	364		n/a
Gas Distribution	64		(5		)	n/a
Adjustments/Eliminations	—		—			$	201
Consolidated Total	$	882	$	359		$	201

Nine Months Ended September 30, 2016
Electric Operations	$	2,039	$	784	n/a
Gas Distribution	253		32		n/a
Adjustments/Eliminations	—		—		$	423
Consolidated Total	$	2,292	$	816	$	423

Three Months Ended September 30, 2015
Electric Operations	$	743	$	313		n/a
Gas Distribution	63		(6		)	n/a
Adjustments/Eliminations	—		—			$	164
Consolidated Total	$	806	$	307		$	164

Nine Months Ended September 30, 2015
Electric Operations	$	2,013	$	728	n/a
Gas Distribution	275		35		n/a
Adjustments/Eliminations	—		—		$	394
Consolidated Total	$	2,288	$	763	$	394

Segment Assets	The Company				Consolidated SCE&G
	September 30,		December 31,		September 30,		December 31,
Millions of dollars	2016		2015		2016		2015
Electric Operations	$	11,543	$	10,883	$	11,543	$	10,883
Gas Distribution	2,757		2,606		801		757
Retail Gas Marketing	140		106		n/a		n/a
Energy Marketing	58		95		n/a		n/a
All Other	985		998		n/a		n/a
Adjustments/Eliminations	2,963		2,458		3,634		3,125
Consolidated Total	$	18,446	$	17,146	$	15,978	$	14,765