LONG-TERM AND SHORT-TERM DEBT (Details 2) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Interest Income, Related Party	$ 3.0
Interest Expense, Related Party	3.1
Related Party Transaction, Due from (to) Related Party, Current	555.0	$ 282.0
Long-term Line of Credit	1,000.0
Commercial Paper		$ 73.2
Debt, Weighted Average Interest Rate		3.82%
Letters of Credit Outstanding, Amount	0.3	$ 0.3
Due to Related Parties		$ 353.0
SCEG including Fuel Company [Member]
Debt Instrument [Line Items]
Commercial paper borrowing limit	2,200.0
Genco
Debt Instrument [Line Items]
Commercial paper borrowing limit	$ 200.0

Commercial paper borrowing limit

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- Definition

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Weighted average interest rate of debt outstanding.

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No definition available.

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- Definition

Carrying amount as of the balance sheet date of obligations due all related parties.

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- Definition

Amount of interest expense incurred on a debt or other obligation to related party.

+ References

No definition available.

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Amount of interest income earned from interest-bearing assets owed to the entity by related party.

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No definition available.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date within one year where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

+ References

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