v3.10.0.1

QUARTERLY FINANCIAL INFORMATION (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Regulated and Unregulated Operating Revenue	$ 1,103	$ 926	$ 843	$ 1,180	$ 1,157	$ 1,076	$ 1,001	$ 1,173	$ 4,052	$ 4,407	$ 4,227
Operating Income (Loss)	(1,204)	183	103	189	(608)	122	251	320	(729)	85	1,167
Income Available to Common Shareholders	$ (772)	$ 67	$ 8	$ 169	$ (445)	$ 34	$ 121	$ 171	$ (528)	$ (119)	$ 595
Earnings Per Share, Basic and Diluted	$ (5.41)	$ 0.47	$ 0.06	$ 1.18	$ (3.11)	$ 0.24	$ 0.85	$ 1.19	$ (3.70)	$ (0.83)	$ 4.16
SCE&G
Regulated Operating Revenue	$ 689	$ 739	$ 632	$ 702	$ 739	$ 856	$ 756	$ 719	$ 2,762	$ 3,070	$ 2,986
Operating Income (Loss)	(1,271)	212	107	121	(680)	124	247	226	(831)	(83)	1,025
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(852)	104	31	128	(452)	42	126	112	(589)	(172)	526
Net Income (Loss) Attributable to Parent	$ (861)	$ 98	$ 26	$ 124	$ (456)	$ 39	$ 123	$ 109	(613)	$ (185)	$ 513
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest									$ (613)

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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