XML 1046 R47.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Summary of Significant Accounting Policies Accounting Records (Details) (USD $) In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Components of Benefit Obligation Regulatory Asset | $ 227.4 | $ 370.6
Components of Net Periodic Benefit Costs to be Recognized in Next Fiscal Year | (1.0) |
Smart Grid Project [Member] |  |
Smart Grid Cost Cap | 366.4 |
U.S. Department of Energy Funds | 130.0 |
Operations and Maintenance Expenses [Member] |  |
Deferred Storm and Property Reserve Deficiency, Current | 2.7 |
Regulatory Asset [Member] |  |
Components of Net Periodic Benefit Costs to be Recognized in Next Fiscal Year | 10.7 |
Pension Plans, Defined Benefit [Member] | Defined Benefit Plans Income Loss [Member] |  |
Components of Benefit Obligation Regulatory Asset | 178.4 | 278.6
Components of Net Periodic Benefit Costs to be Recognized in Next Fiscal Year | 11.4 |
Pension Plans, Defined Benefit [Member] | Prior Service Cost [Member] |  |
Components of Benefit Obligation Regulatory Asset | 2.5 | 4.5
Components of Net Periodic Benefit Costs to be Recognized in Next Fiscal Year | 2.0 |
Other Postretirement Benefit Plans, Defined Benefit [Member] | Defined Benefit Plans Income Loss [Member] |  |
Components of Benefit Obligation Regulatory Asset | 79.9 | 134.6
Components of Net Periodic Benefit Costs to be Recognized in Next Fiscal Year | 11.0 |
Other Postretirement Benefit Plans, Defined Benefit [Member] | Prior Service Cost [Member] |  |
Components of Benefit Obligation Regulatory Asset | (33.4) | (47.1)
Components of Net Periodic Benefit Costs to be Recognized in Next Fiscal Year | (13.7) |
OKLAHOMA | Web Portal Access and Education [Member] | Smart Grid Project [Member] |  |
Smart Grid Costs to be Recovered | $ 6.9 |

X
- Definition Components of Benefit Obligation Regulatory Asset + References No definition available. + Details
Name: | oge_ComponentsOfBenefitObligationRegulatoryAsset
Namespace Prefix: | oge_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Components of Net Periodic Benefit Costs to be Recognized in Next Fiscal Year + References No definition available. + Details
Name: | oge_ComponentsOfNetPeriodicBenefitCostsToBeRecognizedInNextFiscalYear
Namespace Prefix: | oge_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Smart Grid Cost Cap + References No definition available. + Details
Name: | oge_SmartGridCostCap
Namespace Prefix: | oge_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Smart grid costs to be recovered through a rider + References No definition available. + Details
Name: | oge_SmartGridCostsToBeRecovered
Namespace Prefix: | oge_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition U.S. Department of Energy Funds + References No definition available. + Details
Name: | oge_U.S.DepartmentofEnergyFunds
Namespace Prefix: | oge_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount as of the balance sheet date of capitalized storm costs of a regulated entity that are expected to be recoverable through rate adjustments within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499739&loc=d3e43603-110378 + Details
Name: | us-gaap_DeferredStormAndPropertyReserveDeficiencyCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant