Supplemental Guarantor Information (Details Textuals)	Jul. 13, 2007
Supplemental Guarantor Information (Textuals) [Abstract]
Sale and leaseback transactions of undivided interest Bruce Mansfield	93.825%

Sale and leaseback transactions of undivided interest.

No definition available.

Name:	fe_SaleAndLeasebackTransactionsOfUndividedInterest
Namespace Prefix:	fe_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant