Organization, Basis of Presentation and Significant Accounting Policies (Details 4)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Annual Composite Depreciation Rate
Annual Composite Depreciation Rate	2.60%	2.50%	2.40%
FES
Annual Composite Depreciation Rate
Annual Composite Depreciation Rate	3.10%	3.10%	3.10%

Composite depreciation rate for public utility plants in service.

No definition available.

Name:	us-gaap_PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration