EMPLOYEE BENEFIT PLANS (Tables)

6 Months Ended

Jun. 30, 2015

Pension and Other Postretirement Benefit Plans

Schedule of Net Benefit Costs [Table Text Block]

	Pension Benefits						Other Postretirement Benefits
Millions of dollars	2015			2014			2015		2014
Three months ended June 30,
Service cost	$	5.8		$	5.0		$	1.4	$	1.3
Interest cost	9.5			10.2			2.9		3.1
Expected return on assets	(15.5		)	(16.8		)	—		—
Prior service cost amortization	1.0			1.0			0.1		0.1
Amortization of actuarial losses	3.5			1.3			0.6		0.1
Net periodic benefit cost	$	4.3		$	0.7		$	5.0	$	4.6

Six months ended June 30,
Service cost	$	11.5		$	10.0		$	2.8	$	2.5
Interest cost	19.1			20.4			5.8		6.2
Expected return on assets	(31.0		)	(33.6		)	—		—
Prior service cost amortization	2.0			2.0			0.2		0.2
Amortization of actuarial losses	7.0			2.6			1.1		0.2
Net periodic benefit cost	$	8.6		$	1.4		$	9.9	$	9.1

SCEG

Pension and Other Postretirement Benefit Plans

Schedule of Net Benefit Costs [Table Text Block]

	Pension Benefits						Other Postretirement Benefits
Millions of dollars	2015			2014			2015		2014
Three months ended June 30,
Service cost	$	4.6		$	4.0		$	1.1	$	1.0
Interest cost	8.0			8.6			2.3		2.4
Expected return on assets	(13.0		)	(14.1		)	—		—
Prior service cost amortization	0.8			0.8			0.1		0.1
Amortization of actuarial losses	3.0			1.1			0.4		0.1
Net periodic benefit cost	$	3.4		$	0.4		$	3.9	$	3.6

Six months ended June 30,
Service cost	$	9.2		$	8.0		$	2.2	$	2.0
Interest cost	16.0			17.2			4.6		4.8
Expected return on assets	(26.1		)	(28.3		)	—		—
Prior service cost amortization	1.7			1.7			0.1		0.2
Amortization of actuarial losses	6.0			2.2			0.9		0.2
Net periodic benefit cost	$	6.8		$	0.8		$	7.8	$	7.2