EMPLOYEE BENEFIT PLANS EMPLOYEE BENEFIT PLANS (Details 4) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014
Pension Plan, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	$ 63.4
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	64.5
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	65.6
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	66.1
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	65.1
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	338.4
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	11.5
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	12.4
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	13.1
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	13.8
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	14.6
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	81.8
SCE&G \| Pension Plan, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	63.4
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	64.5
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	65.6
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	66.1
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	65.1
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	338.4
SCE&G \| Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	9.1
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	9.8
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	10.4
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	10.9
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	11.5
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	$ 64.6

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Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of benefits from a defined benefit plan expected to be paid in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of benefits from a defined benefit plan expected to be paid in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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