Pension and Other Postemployment Benefits (Tables)

3 Months Ended

Mar. 31, 2014

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Costs

The components of the consolidated net periodic cost (credits) for pensions and OPEB (including amounts capitalized) were as follows:

Components of Net Periodic Benefit Costs (Credits)	Pensions						OPEB
For the Three Months Ended March 31,	2014			2013			2014			2013
	(In millions)
Service costs	$	42		$	49		$	2		$	3
Interest costs	100			93			10			9
Expected return on plan assets	(115		)	(125		)	(8		)	(8		)
Amortization of prior service costs (credits)	2			3			(44		)	(50		)
Net periodic costs (credits)	$	29		$	20		$	(40	)	$	(46	)

Net Periodic Pension and OPEB Costs

FES' share of the net periodic pensions and OPEB costs (credits) were as follows:

	Pensions				OPEB
For the Three Months Ended March 31,	2014		2013		2014			2013
	(In millions)
Net Periodic Costs	$	4	$	5	$	(5	)	$	(5	)

Pension and OPEB obligations are allocated to FE's subsidiaries employing the plan participants. The net periodic pension and OPEB costs (net of amounts capitalized) recognized in earnings by FE and FES were as follows:

Net Periodic Benefit Expense (Credit)	Pensions				OPEB
For the Three Months Ended March 31,	2014		2013		2014			2013
	(In millions)
FirstEnergy	$	21	$	11	$	(27	)	$	(30	)
FES	4		3		(4		)	(3		)