v3.10.0.1

OTHER INCOME (EXPENSE), NET (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other income	$ 180	$ 79	$ 64
Other Nonoperating Expense	(46)	(55)	(52)
Public Utilities, Allowance for Funds Used During Construction, Additions	19	23	29
Nonoperating Income (Expense)	(173)	(47)	(41)
SCE&G
Other income	141	45	29
Other Nonoperating Expense	(28)	(32)	(36)
Public Utilities, Allowance for Funds Used During Construction, Additions	11	15	26
Nonoperating Income (Expense)	(129)	$ (28)	$ (19)
Interest Rate Contract [Member] | Other Income [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) Reclassified from Deferred Accounts into Income	$ 114

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Derivative Instruments, Gain (Loss) Reclassified from Deferred Accounts into Income

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