INCOME TAXES (Summary of Tax Carryforwards) (Details) $ in Millions	Dec. 31, 2018 USD ($)
Internal Revenue Service (IRS)
Income Tax Contingency [Line Items]
Federal Net Operating Loss	$ 108
Tax Credits	13
Investment Tax Credits	34
State Tax Jurisdiction
Income Tax Contingency [Line Items]
Tax Credits	$ 9

The noncurrent portion of the reserve for accumulated deferred investment tax credits as of the balance sheet date. This is the remaining investment credit, which will reduce the cost of services collected from ratepayers by a ratable portion over the investment's regulatory life.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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