Pension and Other Postemployment Benefits (Tables)

3 Months Ended

Mar. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Costs

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

Components of Net Periodic Benefit Costs (Credits)	Pension						OPEB
For the Three Months Ended March 31	2016			2015			2016			2015
	(In millions)
Service costs	$	48		$	48		$	1		$	1
Interest costs	100			96			7			7
Expected return on plan assets	(97		)	(111		)	(8		)	(8		)
Amortization of prior service costs (credits)	2			2			(20		)	(33		)
Net periodic costs (credits)	$	53		$	35		$	(20	)	$	(33	)

Net Periodic Pension and OPEB Costs

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

	Pension				OPEB
	2016		2015		2016			2015
	(In millions)
For the Three Months Ended March 31	$	6	$	4	$	(4	)	$	(5	)

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

Net Periodic Benefit Expense (Credit)	Pension				OPEB
For the Three Months Ended March 31	2016		2015		2016			2015
	(In millions)
FirstEnergy	$	37	$	25	$	(15	)	$	(23	)
FES	6		4		(4		)	(4		)