OTHER INCOME (EXPENSE), NET Other Income (Expense) (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of Other Operating Cost and Expense, by Component [Table Text Block]

	The Company						Consolidated SCE&G
	Three Months Ended						Three Months Ended
	March 31,						March 31,
Millions of dollars	2018			2017			2018			2017
Revenues from contracts with customers	$	5		$	—		$	1		$	—
Other income	129			17			126			8
Other expense	(10		)	(14		)	(7		)	(10		)
Allowance for equity funds used during construction	4			9			3			9
Other income (expense), net	$	128		$	12		$	123		$	7

SCEG

Schedule of Other Operating Cost and Expense, by Component [Table Text Block]

	The Company						Consolidated SCE&G
	Three Months Ended						Three Months Ended
	March 31,						March 31,
Millions of dollars	2018			2017			2018			2017
Revenues from contracts with customers	$	5		$	—		$	1		$	—
Other income	129			17			126			8
Other expense	(10		)	(14		)	(7		)	(10		)
Allowance for equity funds used during construction	4			9			3			9
Other income (expense), net	$	128		$	12		$	123		$	7