EMPLOYEE BENEFIT PLANS (Tables)

6 Months Ended

Jun. 30, 2017

Pension and Other Postretirement Benefit Plans

Schedule of Net Benefit Costs [Table Text Block]

The Company	Pension Benefits						Other Postretirement Benefits
	2017			2016			2017		2016
Three months ended June 30,
Service cost	$	5.3		$	5.5		$	1.2	$	1.3
Interest cost	9.4			9.9			2.9		3.0
Expected return on assets	(13.8		)	(14.1		)	—		—
Prior service cost amortization	0.4			1.0			—		0.1
Amortization of actuarial losses	3.9			3.7			0.4		0.1
Net periodic benefit cost	$	5.2		$	6.0		$	4.5	$	4.5

Six months ended June 30,
Service cost	$	10.5		$	11.0		$	2.3	$	2.5
Interest cost	18.9			19.8			5.9		6.0
Expected return on assets	(27.6		)	(28.1		)	—		—
Prior service cost amortization	0.8			2.0			—		0.2
Amortization of actuarial losses	7.9			7.4			0.7		0.2
Net periodic benefit cost	$	10.5		$	12.1		$	8.9	$	8.9

Consolidated SCE&G	Pension Benefits						Other Postretirement Benefits
	2017			2016			2017		2016
Three months ended June 30,
Service cost	$	4.4		$	4.5		$	1.0	$	1.0
Interest cost	8.1			8.4			2.4		2.5
Expected return on assets	(11.8		)	(11.9		)	—		—
Prior service cost amortization	0.3			0.8			—		0.1
Amortization of actuarial losses	3.4			3.1			0.3		0.1
Net periodic benefit cost	$	4.4		$	4.9		$	3.7	$	3.7

Six months ended June 30,
Service cost	$	8.8		$	9.0		$	1.9	$	2.0
Interest cost	16.1			16.8			4.8		5.0
Expected return on assets	(23.6		)	(23.8		)	—		—
Prior service cost amortization	0.7			1.7			—		0.1
Amortization of actuarial losses	6.7			6.2			0.6		0.2
Net periodic benefit cost	$	8.7		$	9.9		$	7.3	$	7.3

SCEG

Pension and Other Postretirement Benefit Plans

Schedule of Net Benefit Costs [Table Text Block]

Consolidated SCE&G	Pension Benefits						Other Postretirement Benefits
	2017			2016			2017		2016
Three months ended June 30,
Service cost	$	4.4		$	4.5		$	1.0	$	1.0
Interest cost	8.1			8.4			2.4		2.5
Expected return on assets	(11.8		)	(11.9		)	—		—
Prior service cost amortization	0.3			0.8			—		0.1
Amortization of actuarial losses	3.4			3.1			0.3		0.1
Net periodic benefit cost	$	4.4		$	4.9		$	3.7	$	3.7

Six months ended June 30,
Service cost	$	8.8		$	9.0		$	1.9	$	2.0
Interest cost	16.1			16.8			4.8		5.0
Expected return on assets	(23.6		)	(23.8		)	—		—
Prior service cost amortization	0.7			1.7			—		0.1
Amortization of actuarial losses	6.7			6.2			0.6		0.2
Net periodic benefit cost	$	8.7		$	9.9		$	7.3	$	7.3