SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES RECLASSIFICATION (Tables)

6 Months Ended

Jun. 30, 2018

Condensed Statement of Income Captions [Line Items]

Statement of Income [Table Text Block]

Increase (Decrease) Millions of dollars	The Company						Consolidated SCE&G
June 30, 2017	Three Months Ended			Six Months Ended			Three Months Ended			Six Months Ended
Other operation and maintenance	$	(2	)	$	(6	)	$	(1	)	$	(5	)
Total Operating Expenses	(2		)	(6		)	(1		)	(5		)
Operating Income	2			6			1			5
Other Income (Expense), Net	(2		)	(6		)	(1		)	(5		)

SCEG

Condensed Statement of Income Captions [Line Items]

Statement of Income [Table Text Block]

Increase (Decrease) Millions of dollars	The Company						Consolidated SCE&G
June 30, 2017	Three Months Ended			Six Months Ended			Three Months Ended			Six Months Ended
Other operation and maintenance	$	(2	)	$	(6	)	$	(1	)	$	(5	)
Total Operating Expenses	(2		)	(6		)	(1		)	(5		)
Operating Income	2			6			1			5
Other Income (Expense), Net	(2		)	(6		)	(1		)	(5		)