Variable Interest Entities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
FES
Net exposure to loss based upon the casualty value provisions
Maximum Exposure	$ 1,274
Discounted Lease Payments, net	1,063	[1]
Net Exposure	211
Other FE subsidiaries
Net exposure to loss based upon the casualty value provisions
Maximum Exposure	752
Discounted Lease Payments, net	289	[1]
Net Exposure	$ 463

[1] The net present value of FirstEnergy’s consolidated sale and leaseback operating lease commitments is $1.1 billion.