AFFILIATED TRANSACTIONS SCANA Services (Tables)

3 Months Ended

Mar. 31, 2018

SCEG

Related Party Transaction [Line Items]

Schedule of Related Party Transactions [Table Text Block]

	Three Months Ended March 31,
Millions of Dollars	2018		2017
Purchases from SCANA Energy	$	31.3	$	23.9
Direct and Allocated Costs from SCANA Services	59.4		72.5

Millions of Dollars	March 31, 2018		December 31, 2017
Payable to SCANA Energy	$	8.1	$	10.0
Payable to SCANA Services	36.7		42.0