UTILITY PLANT AND NONUTILITY PROPERTY Utility and Nonutiltiy Property (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Line Items]

Property, Plant and Equipment [Table Text Block]

Millions of dollars	The Company		Consolidated SCE&G
Gross Utility Plant:
Generation	$	5,751	$	5,751
Transmission	2,417		1,758
Distribution	6,032		4,456
Storage	99		74
General and other	631		535
Intangible	241		229
Construction work in progress	527		350
Nuclear Fuel	611		611
Total Gross Utility Plant	$	16,309	$	13,764
Gross Nonutility Property	$	410	$	73

Schedule of Jointly Owned Utility Plants [Table Text Block]

As of December 31,	2018			2017
	Unit 1			Unit 1
Percent owned	66.7%			66.7%
Plant in service	$	1.5	billion	$	1.5	billion
Accumulated depreciation	$	643.9	million	$	637.6	million
Construction work in progress	$	127.5	million	$	110.1	million

SCE&G

Property, Plant and Equipment [Line Items]

Property, Plant and Equipment [Table Text Block]

Millions of dollars	The Company		Consolidated SCE&G
Gross Utility Plant:
Generation	$	5,751	$	5,751
Transmission	2,417		1,758
Distribution	6,032		4,456
Storage	99		74
General and other	631		535
Intangible	241		229
Construction work in progress	527		350
Nuclear Fuel	611		611
Total Gross Utility Plant	$	16,309	$	13,764
Gross Nonutility Property	$	410	$	73

Schedule of Jointly Owned Utility Plants [Table Text Block]

As of December 31,	2018			2017
	Unit 1			Unit 1
Percent owned	66.7%			66.7%
Plant in service	$	1.5	billion	$	1.5	billion
Accumulated depreciation	$	643.9	million	$	637.6	million
Construction work in progress	$	127.5	million	$	110.1	million