SEGMENT OF BUSINESS INFORMATION

6 Months Ended

Jun. 30, 2017

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. The Gas Marketing segment measures 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.

The Company
Millions of dollars	External Revenue		Intersegment Revenue			Operating Income (Loss)		Net Income
Three Months Ended June 30, 2017
Electric Operations	$	679	$	2		$	245	n/a
Gas Distribution	140		1			3		n/a
Gas Marketing	182		34			n/a		$	1
All Other	—		102			—		(7		)
Adjustments/Eliminations	—		(139		)	1		127
Consolidated Total	$	1,001	$	—		$	249	$	121

Six Months Ended June 30, 2017
Electric Operations	$	1,256	$	3		$	423	n/a
Gas Distribution	461		1			116		n/a
Gas Marketing	456		58			n/a		$	16
All Other	—		196			—		(7		)
Adjustments/Eliminations	—		(258		)	26		283
Consolidated Total	$	2,173	$	—		$	565	$	292

Three Months Ended June 30, 2016
Electric Operations	$	625	$	2		$	222		n/a
Gas Distribution	127		—			(1		)	n/a
Gas Marketing	153		26			n/a			—
All Other	—		104			—			$	(7	)
Adjustments/Eliminations	—		(132		)	—			112
Consolidated Total	$	905	$	—		$	221		$	105

Six Months Ended June 30, 2016
Electric Operations	$	1,217	$	3		$	420	n/a
Gas Distribution	426		1			93		n/a
Gas Marketing	434		48			n/a		$	24
All Other	—		202			—		(7		)
Adjustments/Eliminations	—		(254		)	38		264
Consolidated Total	$	2,077	$	—		$	551	$	281

Consolidated SCE&G
Millions of dollars	External Revenue		Operating Income		Earnings Available to Common Shareholder
Three Months Ended June 30, 2017
Electric Operations	$	680	$	246	n/a
Gas Distribution	76		—		n/a
Adjustments/Eliminations	—		—		$	123
Consolidated Total	$	756	$	246	$	123

Six Months Ended June 30, 2017
Electric Operations	$	1,259	$	424	n/a
Gas Distribution	217		44		n/a
Adjustments/Eliminations	—		—		$	231
Consolidated Total	$	1,476	$	468	$	231

Three Months Ended June 30, 2016
Electric Operations	$	627	$	222	n/a
Gas Distribution	65		—		n/a
Adjustments/Eliminations	—		—		$	110
Consolidated Total	$	692	$	222	$	110

Six Months Ended June 30, 2016
Electric Operations	$	1,220	$	420	n/a
Gas Distribution	189		38		n/a
Adjustments/Eliminations	—		—		$	223
Consolidated Total	$	1,409	$	458	$	223

Segment Assets	The Company				Consolidated SCE&G
	June 30,		December 31,		June 30,		December 31,
Millions of dollars	2017		2016		2017		2016
Electric Operations	$	12,377	$	11,929	$	12,377	$	11,929
Gas Distribution	3,032		2,892		848		825
Gas Marketing	195		230		n/a		n/a
All Other	1,031		1,124		n/a		n/a
Adjustments/Eliminations	2,421		2,532		3,259		3,337
Consolidated Total	$	19,056	$	18,707	$	16,484	$	16,091

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. The Gas Marketing segment measures 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.

The Company
Millions of dollars	External Revenue		Intersegment Revenue			Operating Income (Loss)		Net Income
Three Months Ended June 30, 2017
Electric Operations	$	679	$	2		$	245	n/a
Gas Distribution	140		1			3		n/a
Gas Marketing	182		34			n/a		$	1
All Other	—		102			—		(7		)
Adjustments/Eliminations	—		(139		)	1		127
Consolidated Total	$	1,001	$	—		$	249	$	121

Six Months Ended June 30, 2017
Electric Operations	$	1,256	$	3		$	423	n/a
Gas Distribution	461		1			116		n/a
Gas Marketing	456		58			n/a		$	16
All Other	—		196			—		(7		)
Adjustments/Eliminations	—		(258		)	26		283
Consolidated Total	$	2,173	$	—		$	565	$	292

Three Months Ended June 30, 2016
Electric Operations	$	625	$	2		$	222		n/a
Gas Distribution	127		—			(1		)	n/a
Gas Marketing	153		26			n/a			—
All Other	—		104			—			$	(7	)
Adjustments/Eliminations	—		(132		)	—			112
Consolidated Total	$	905	$	—		$	221		$	105

Six Months Ended June 30, 2016
Electric Operations	$	1,217	$	3		$	420	n/a
Gas Distribution	426		1			93		n/a
Gas Marketing	434		48			n/a		$	24
All Other	—		202			—		(7		)
Adjustments/Eliminations	—		(254		)	38		264
Consolidated Total	$	2,077	$	—		$	551	$	281

Consolidated SCE&G
Millions of dollars	External Revenue		Operating Income		Earnings Available to Common Shareholder
Three Months Ended June 30, 2017
Electric Operations	$	680	$	246	n/a
Gas Distribution	76		—		n/a
Adjustments/Eliminations	—		—		$	123
Consolidated Total	$	756	$	246	$	123

Six Months Ended June 30, 2017
Electric Operations	$	1,259	$	424	n/a
Gas Distribution	217		44		n/a
Adjustments/Eliminations	—		—		$	231
Consolidated Total	$	1,476	$	468	$	231

Three Months Ended June 30, 2016
Electric Operations	$	627	$	222	n/a
Gas Distribution	65		—		n/a
Adjustments/Eliminations	—		—		$	110
Consolidated Total	$	692	$	222	$	110

Six Months Ended June 30, 2016
Electric Operations	$	1,220	$	420	n/a
Gas Distribution	189		38		n/a
Adjustments/Eliminations	—		—		$	223
Consolidated Total	$	1,409	$	458	$	223

Segment Assets	The Company				Consolidated SCE&G
	June 30,		December 31,		June 30,		December 31,
Millions of dollars	2017		2016		2017		2016
Electric Operations	$	12,377	$	11,929	$	12,377	$	11,929
Gas Distribution	3,032		2,892		848		825
Gas Marketing	195		230		n/a		n/a
All Other	1,031		1,124		n/a		n/a
Adjustments/Eliminations	2,421		2,532		3,259		3,337
Consolidated Total	$	19,056	$	18,707	$	16,484	$	16,091